b******n 发帖数: 1269 | 1 I am making some preliminary progress regarding my new carbon frame design.
Some thoughts include:
Monocoque design
Sloping TT
ISP
1.124-1.50 Headtube
Internal cable routing
rear shifting cable through dropout
1cm taller headtube than otherwise (saves a spacer)
BB30
Asymetric chain stays
Weight aiming at 1100g (not sure if reachable)
Geometries for size 51.
Virtual TT 530mm
Virtual ST c-c 510mm
Actual ST c-c 460mm
ST diameter 34.9mm
Head tube 135mm
Chainstay 400mm
Seat angle 74 deg
Head angle 7 |
f**********e 发帖数: 1994 | 2 你缺了一个最重要的 factor: 这车干嘛用的? Road? Aero Road? Road-Tri? Tri?
这 geometry 看起来像 pure road.
design.
【在 b******n 的大作中提到】 : I am making some preliminary progress regarding my new carbon frame design. : Some thoughts include: : Monocoque design : Sloping TT : ISP : 1.124-1.50 Headtube : Internal cable routing : rear shifting cable through dropout : 1cm taller headtube than otherwise (saves a spacer) : BB30
|
b******n 发帖数: 1269 | 3 Pure road.
【在 f**********e 的大作中提到】 : 你缺了一个最重要的 factor: 这车干嘛用的? Road? Aero Road? Road-Tri? Tri? : 这 geometry 看起来像 pure road. : : design.
|
h******2 发帖数: 1498 | 4 My vote:
Straight fork? Yes
Oval ISP? No
Outside clamp (not light, and ugly)? or internal mini seatpost (pretty, but
even heavier)? Internal
Aero tubing? Round tubing? Round tubing. Aero tubing looks too much like a
Cervelo wannabe.
Now the question is, what's the color for the frame, and what paint scheme?? |
b******n 发帖数: 1269 | 5 Thanks. I think the paintjob is far far down the road. The mold is the
first step, so need very detailed drawings for that. Very detailed designs
even on the seatstay will be very important to draft up now. I am thinking
usinga shark shaped chain stays.
but
a
??
【在 h******2 的大作中提到】 : My vote: : Straight fork? Yes : Oval ISP? No : Outside clamp (not light, and ugly)? or internal mini seatpost (pretty, but : even heavier)? Internal : Aero tubing? Round tubing? Round tubing. Aero tubing looks too much like a : Cervelo wannabe. : Now the question is, what's the color for the frame, and what paint scheme??
|
h******2 发帖数: 1498 | 6 So you are designing your own frame, from scratch?? How much does that cost
? What's shark shaped chain stays? |
b******n 发帖数: 1269 | 7 Yeah, trying to line up an OEM manufacturer... could be the same one that
makes the Dogmas. Or others... we shall see.
Re chainstays, I like sharks' lines. Thought it'd be nice to have some sort of incarnation of that on a bike.
cost
【在 h******2 的大作中提到】 : So you are designing your own frame, from scratch?? How much does that cost : ? What's shark shaped chain stays?
|
i*********5 发帖数: 19210 | 8 man, you are truly a hardcore! you just put the rest of us in shame.
i'm always happy to just get a bike better than my last one. as simple as
that. ;-)
sort of incarnation of that on a bike.
【在 b******n 的大作中提到】 : Yeah, trying to line up an OEM manufacturer... could be the same one that : makes the Dogmas. Or others... we shall see. : Re chainstays, I like sharks' lines. Thought it'd be nice to have some sort of incarnation of that on a bike. : : cost
|
h******2 发帖数: 1498 | 9 is this a one-frame production or will they make other sizes as well? if
they will make the next size up, sign me up :)
sort of incarnation of that on a bike.
【在 b******n 的大作中提到】 : Yeah, trying to line up an OEM manufacturer... could be the same one that : makes the Dogmas. Or others... we shall see. : Re chainstays, I like sharks' lines. Thought it'd be nice to have some sort of incarnation of that on a bike. : : cost
|
b******n 发帖数: 1269 | 10 If the first frame turn out well, then it could become a bigger operation.
【在 h******2 的大作中提到】 : is this a one-frame production or will they make other sizes as well? if : they will make the next size up, sign me up :) : : sort of incarnation of that on a bike.
|
|
|
b******n 发帖数: 1269 | 11 actually, same here... :-)
【在 i*********5 的大作中提到】 : man, you are truly a hardcore! you just put the rest of us in shame. : i'm always happy to just get a bike better than my last one. as simple as : that. ;-) : : sort of incarnation of that on a bike.
|
s*******8 发帖数: 12734 | |
w*****h 发帖数: 1770 | |
b******n 发帖数: 1269 | 14 integrated seatpost... If you type ISP and bicycle into google, you will see.
【在 w*****h 的大作中提到】 : what is ISP?
|
f**********e 发帖数: 1994 | 15 就 51cm 的来说,head tube 比较长。你喜欢像 Cervelo RS 那样高高的脑袋?
我比较喜欢低脑袋。
【在 b******n 的大作中提到】 : Pure road.
|
f**********e 发帖数: 1994 | 16 也就是说,锯子锯烂了就歇菜了。耶
see.
【在 b******n 的大作中提到】 : integrated seatpost... If you type ISP and bicycle into google, you will see.
|
h******2 发帖数: 1498 | 17 the point is to have a bike that looks pro (no spacers) and not killing your
back...
another poseur trick :)
【在 f**********e 的大作中提到】 : 就 51cm 的来说,head tube 比较长。你喜欢像 Cervelo RS 那样高高的脑袋? : 我比较喜欢低脑袋。
|
w*****h 发帖数: 1770 | 18 got ya.
see.
【在 b******n 的大作中提到】 : integrated seatpost... If you type ISP and bicycle into google, you will see.
|
b******n 发帖数: 1269 | 19 Actually it's not that bad...
If you look at this one, headtube including headset, it's about 158mm. It's
51.5cm c-c.
【在 f**********e 的大作中提到】 : 就 51cm 的来说,head tube 比较长。你喜欢像 Cervelo RS 那样高高的脑袋? : 我比较喜欢低脑袋。
|
b******n 发帖数: 1269 | 20 It's really not that difficult... as long as the mechanic is not overly dumb
. Ihave cut 30+ forks and 3 ISPs. Actually no failures so far. There were
2 cases I wished they were 5mm longer, but they were merely less than ideal
... I wouldn't call them failures. The rest were all OK.
【在 f**********e 的大作中提到】 : 也就是说,锯子锯烂了就歇菜了。耶 : : see.
|
|
|
f**********e 发帖数: 1994 | 21 的确看起来不像 158mm. 难道 traditional geometry 脑袋就是要长?
我的 51cm 山寨 Kuota 脑袋只有 120mm.
It's
【在 b******n 的大作中提到】 : Actually it's not that bad... : If you look at this one, headtube including headset, it's about 158mm. It's : 51.5cm c-c.
|
f**********e 发帖数: 1994 | 22 对对对,量时墨迹切时果断。
dumb
were
ideal
【在 b******n 的大作中提到】 : It's really not that difficult... as long as the mechanic is not overly dumb : . Ihave cut 30+ forks and 3 ISPs. Actually no failures so far. There were : 2 cases I wished they were 5mm longer, but they were merely less than ideal : ... I wouldn't call them failures. The rest were all OK.
|
b******n 发帖数: 1269 | 23 The C50 is actually sloping. 50S with 4cm of slope.
【在 f**********e 的大作中提到】 : 的确看起来不像 158mm. 难道 traditional geometry 脑袋就是要长? : 我的 51cm 山寨 Kuota 脑袋只有 120mm. : : It's
|
b******n 发帖数: 1269 | 24 Here is an update -- After hours and hours of thinking, I have finally
settled with the following:
30.25 ISP (I don't like the monster size ones like 35/37-ish, I don't think
a thick SP makes a difference because the most load applies when out of the
saddle so SP is irrelevant then).
BB30 (seems slightly ahead of BB86 in the new standard contest, plus less
material and more ankle/chainstay clearance).
Mostly non-aero tubing.
Tall headtube as planned.
Tubing will have small amounts of curve, so no Parlee/Nago knockoffs for ya.
Asymetrical chainstays.
Probably straight fork (still debating whether to use standard straight fork
from manufacturer, because a new fork mold costs as much as my C50 -- Ouch)
.
Frame will incorporate features of 1-2 animals... still working on that. |
f**********e 发帖数: 1994 | 25 asymmetrical chainstay? 像 Pina 还是 Kuota?
think
the
less
ya.
【在 b******n 的大作中提到】 : Here is an update -- After hours and hours of thinking, I have finally : settled with the following: : 30.25 ISP (I don't like the monster size ones like 35/37-ish, I don't think : a thick SP makes a difference because the most load applies when out of the : saddle so SP is irrelevant then). : BB30 (seems slightly ahead of BB86 in the new standard contest, plus less : material and more ankle/chainstay clearance). : Mostly non-aero tubing. : Tall headtube as planned. : Tubing will have small amounts of curve, so no Parlee/Nago knockoffs for ya.
|
b******n 发帖数: 1269 | 26 We will know after we figure it out.
【在 f**********e 的大作中提到】 : asymmetrical chainstay? 像 Pina 还是 Kuota? : : think : the : less : ya.
|
t****u 发帖数: 10218 | 27 Sounds very interesting. I like the choices you made so far. Will you have
other sizes made or this is it? Also paint and color will be very important
to me as well. Any idea so far? |
J********e 发帖数: 2284 | 28 (tentatively)打算搞台新车,大家看拉登的这个protocol怎么样?
和老费的那个山寨Kura比起来如何? |
f**********e 发帖数: 1994 | 29 本拉登的 geometry 还不知道。如果怕麻烦不如直接跳横大叔的 PF deal 算了,不会
比山寨架
子贵太多,还多点保障。
【在 J********e 的大作中提到】 : (tentatively)打算搞台新车,大家看拉登的这个protocol怎么样? : 和老费的那个山寨Kura比起来如何?
|
b******n 发帖数: 1269 | 30 I will be using T1000 and MJ60 carbon, as you find on $4K+ bikes. 98% of
the bikes coming out of China use generic carbon... That said... I may need
to consider having a generic carbon model just to be commercially viable.
Personally I believe my model will be much better than the knock off Kuota.
The issue with many of these 山寨 frames from China is, their engineers are
not engineers. NOr do they know about racing heritage and human anatomy.
My 山寨 bike (which actually is pretty, thanks to my custom paintjob) has a
51.6 toptube. The toe overlap is fucking ridiculous. I bet 95% of
engineers in these factories have never heard of the word toe overlap. They
are completely clueless (Sorry, I know it sounds really arrogant).
【在 J********e 的大作中提到】 : (tentatively)打算搞台新车,大家看拉登的这个protocol怎么样? : 和老费的那个山寨Kura比起来如何?
|
|
|
i*********k 发帖数: 596 | |
f**********e 发帖数: 1994 | 32 任何不会断的 carbon frame 应该都比那山寨 Kuota 有保障。那山寨 Kuota
基本就是个二手 mold 工厂, 把 closed/open mold N 年前的 model 搞来
改改小地方就开工了。(它很像 04-05 间的 Kredo)Who cares about the
engineering. 我选它是因为它的 geometry 至少和 Kuota 是一样的,不至
于太离谱。toe overlap 其实比我以前的 Bianchi 还像话。
98% of
may need
viable.
Kuota.
engineers are
anatomy.
paintjob) has a
overlap. They
【在 b******n 的大作中提到】 : I will be using T1000 and MJ60 carbon, as you find on $4K+ bikes. 98% of : the bikes coming out of China use generic carbon... That said... I may need : to consider having a generic carbon model just to be commercially viable. : Personally I believe my model will be much better than the knock off Kuota. : The issue with many of these 山寨 frames from China is, their engineers are : not engineers. NOr do they know about racing heritage and human anatomy. : My 山寨 bike (which actually is pretty, thanks to my custom paintjob) has a : 51.6 toptube. The toe overlap is fucking ridiculous. I bet 95% of : engineers in these factories have never heard of the word toe overlap. They : are completely clueless (Sorry, I know it sounds really arrogant).
|
b******n 发帖数: 1269 | 33 Sorry I didn't mean to attack the Kuota lookalike.
I went to quite a few factories in China and it was my impression from
talking to them. Most of them have very little knowledge about bike
handling, such as trail, setoff, rake, reach, stack, etc. These are far
more important to bike fit and handling than mere seattube c-c measurement.
My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they
sold over 7500 of them), yet its engineering in terms of geometry is
horrible. Cluelessness can show in many different ways, and not necessarily
toe overlap. My goal is not to beat up on other brands/makes, but to share
my truest and most honest feelings when I went and talked to these "
engineers".
【在 f**********e 的大作中提到】 : 任何不会断的 carbon frame 应该都比那山寨 Kuota 有保障。那山寨 Kuota : 基本就是个二手 mold 工厂, 把 closed/open mold N 年前的 model 搞来 : 改改小地方就开工了。(它很像 04-05 间的 Kredo)Who cares about the : engineering. 我选它是因为它的 geometry 至少和 Kuota 是一样的,不至 : 于太离谱。toe overlap 其实比我以前的 Bianchi 还像话。 : : 98% of : may need : viable. : Kuota.
|
h******2 发帖数: 1498 | 34 sounds like a track geometry!!
a
They
【在 b******n 的大作中提到】 : Sorry I didn't mean to attack the Kuota lookalike. : I went to quite a few factories in China and it was my impression from : talking to them. Most of them have very little knowledge about bike : handling, such as trail, setoff, rake, reach, stack, etc. These are far : more important to bike fit and handling than mere seattube c-c measurement. : My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they : sold over 7500 of them), yet its engineering in terms of geometry is : horrible. Cluelessness can show in many different ways, and not necessarily : toe overlap. My goal is not to beat up on other brands/makes, but to share : my truest and most honest feelings when I went and talked to these "
|
h******2 发帖数: 1498 | 35 seriously, even to most cyclists, the subtlety in handling is not so obvious
. most of these things are not noticeable to the average weekend rider,
unless the bike is put to a technical course at high speed. there are very
few people in China who can afford to race on a regular basis, let along the
folks working on a cookie-cutter CAD program in Fujian.
.
they
necessarily
share
【在 b******n 的大作中提到】 : Sorry I didn't mean to attack the Kuota lookalike. : I went to quite a few factories in China and it was my impression from : talking to them. Most of them have very little knowledge about bike : handling, such as trail, setoff, rake, reach, stack, etc. These are far : more important to bike fit and handling than mere seattube c-c measurement. : My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they : sold over 7500 of them), yet its engineering in terms of geometry is : horrible. Cluelessness can show in many different ways, and not necessarily : toe overlap. My goal is not to beat up on other brands/makes, but to share : my truest and most honest feelings when I went and talked to these "
|
f**********e 发帖数: 1994 | 36 别别别,我没上火。我知道自己花 $300 买来的是什么货色... CF 一定是
最便宜的 12K, layering 应该是胡搞的,top tube中间(mold 接缝处)
carbon 舖得跟鸡巴毛一样乱(他们会喷黑漆掩饰,但有些地方连掩饰都省了)。
中国的山寨碳车厂没有 race culture, 没有风洞,没有人做应力分析,估计
甚至没人骑自己生产的车。这种环境是不可能有真正的 design/engineering
的。别要求太高啦。
Cervelo 为了研发 R5ca, 还特别做了一台特制的 soloist team, 里头装
满了 strain gauge, 如此才能知道那里要铺几层 carbon. 这放在中国估计
会被人笑掉大牙。
http://www.bikeradar.com/news/article/first-look-cervelos-ultralight-
r5ca-frame-26360
from
far
measurement.
2010 (they
necessarily
to share
【在 b******n 的大作中提到】 : Sorry I didn't mean to attack the Kuota lookalike. : I went to quite a few factories in China and it was my impression from : talking to them. Most of them have very little knowledge about bike : handling, such as trail, setoff, rake, reach, stack, etc. These are far : more important to bike fit and handling than mere seattube c-c measurement. : My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they : sold over 7500 of them), yet its engineering in terms of geometry is : horrible. Cluelessness can show in many different ways, and not necessarily : toe overlap. My goal is not to beat up on other brands/makes, but to share : my truest and most honest feelings when I went and talked to these "
|
b******n 发帖数: 1269 | 37 I am making some preliminary progress regarding my new carbon frame design.
Some thoughts include:
Monocoque design
Sloping TT
ISP
1.124-1.50 Headtube
Internal cable routing
rear shifting cable through dropout
1cm taller headtube than otherwise (saves a spacer)
BB30
Asymetric chain stays
Weight aiming at 1100g (not sure if reachable)
Geometries for size 51.
Virtual TT 530mm
Virtual ST c-c 510mm
Actual ST c-c 460mm
ST diameter 34.9mm
Head tube 135mm
Chainstay 400mm
Seat angle 74 deg
Head angle 72.5 deg
Remaining questions:
Straight fork?
Oval ISP?
Outside clamp (not light, and ugly)? or internal mini seatpost (pretty, but
even heavier)?
Aero tubing? Round tubing?
Love to hear your thoughts. |
f**********e 发帖数: 1994 | 38 你缺了一个最重要的 factor: 这车干嘛用的? Road? Aero Road? Road-Tri? Tri?
这 geometry 看起来像 pure road.
design.
【在 b******n 的大作中提到】 : I am making some preliminary progress regarding my new carbon frame design. : Some thoughts include: : Monocoque design : Sloping TT : ISP : 1.124-1.50 Headtube : Internal cable routing : rear shifting cable through dropout : 1cm taller headtube than otherwise (saves a spacer) : BB30
|
b******n 发帖数: 1269 | 39 Pure road.
【在 f**********e 的大作中提到】 : 你缺了一个最重要的 factor: 这车干嘛用的? Road? Aero Road? Road-Tri? Tri? : 这 geometry 看起来像 pure road. : : design.
|
h******2 发帖数: 1498 | 40 My vote:
Straight fork? Yes
Oval ISP? No
Outside clamp (not light, and ugly)? or internal mini seatpost (pretty, but
even heavier)? Internal
Aero tubing? Round tubing? Round tubing. Aero tubing looks too much like a
Cervelo wannabe.
Now the question is, what's the color for the frame, and what paint scheme?? |
|
|
b******n 发帖数: 1269 | 41 Thanks. I think the paintjob is far far down the road. The mold is the
first step, so need very detailed drawings for that. Very detailed designs
even on the seatstay will be very important to draft up now. I am thinking
usinga shark shaped chain stays.
but
a
??
【在 h******2 的大作中提到】 : My vote: : Straight fork? Yes : Oval ISP? No : Outside clamp (not light, and ugly)? or internal mini seatpost (pretty, but : even heavier)? Internal : Aero tubing? Round tubing? Round tubing. Aero tubing looks too much like a : Cervelo wannabe. : Now the question is, what's the color for the frame, and what paint scheme??
|
h******2 发帖数: 1498 | 42 So you are designing your own frame, from scratch?? How much does that cost
? What's shark shaped chain stays? |
b******n 发帖数: 1269 | 43 Yeah, trying to line up an OEM manufacturer... could be the same one that
makes the Dogmas. Or others... we shall see.
Re chainstays, I like sharks' lines. Thought it'd be nice to have some sort of incarnation of that on a bike.
cost
【在 h******2 的大作中提到】 : So you are designing your own frame, from scratch?? How much does that cost : ? What's shark shaped chain stays?
|
i*********5 发帖数: 19210 | 44 man, you are truly a hardcore! you just put the rest of us in shame.
i'm always happy to just get a bike better than my last one. as simple as
that. ;-)
sort of incarnation of that on a bike.
【在 b******n 的大作中提到】 : Yeah, trying to line up an OEM manufacturer... could be the same one that : makes the Dogmas. Or others... we shall see. : Re chainstays, I like sharks' lines. Thought it'd be nice to have some sort of incarnation of that on a bike. : : cost
|
h******2 发帖数: 1498 | 45 is this a one-frame production or will they make other sizes as well? if
they will make the next size up, sign me up :)
sort of incarnation of that on a bike.
【在 b******n 的大作中提到】 : Yeah, trying to line up an OEM manufacturer... could be the same one that : makes the Dogmas. Or others... we shall see. : Re chainstays, I like sharks' lines. Thought it'd be nice to have some sort of incarnation of that on a bike. : : cost
|
b******n 发帖数: 1269 | 46 If the first frame turn out well, then it could become a bigger operation.
【在 h******2 的大作中提到】 : is this a one-frame production or will they make other sizes as well? if : they will make the next size up, sign me up :) : : sort of incarnation of that on a bike.
|
b******n 发帖数: 1269 | 47 actually, same here... :-)
【在 i*********5 的大作中提到】 : man, you are truly a hardcore! you just put the rest of us in shame. : i'm always happy to just get a bike better than my last one. as simple as : that. ;-) : : sort of incarnation of that on a bike.
|
s*******8 发帖数: 12734 | |
w*****h 发帖数: 1770 | |
b******n 发帖数: 1269 | 50 integrated seatpost... If you type ISP and bicycle into google, you will see.
【在 w*****h 的大作中提到】 : what is ISP?
|
|
|
f**********e 发帖数: 1994 | 51 就 51cm 的来说,head tube 比较长。你喜欢像 Cervelo RS 那样高高的脑袋?
我比较喜欢低脑袋。
【在 b******n 的大作中提到】 : Pure road.
|
f**********e 发帖数: 1994 | 52 也就是说,锯子锯烂了就歇菜了。耶
see.
【在 b******n 的大作中提到】 : integrated seatpost... If you type ISP and bicycle into google, you will see.
|
h******2 发帖数: 1498 | 53 the point is to have a bike that looks pro (no spacers) and not killing your
back...
another poseur trick :)
【在 f**********e 的大作中提到】 : 就 51cm 的来说,head tube 比较长。你喜欢像 Cervelo RS 那样高高的脑袋? : 我比较喜欢低脑袋。
|
w*****h 发帖数: 1770 | 54 got ya.
see.
【在 b******n 的大作中提到】 : integrated seatpost... If you type ISP and bicycle into google, you will see.
|
b******n 发帖数: 1269 | 55 Actually it's not that bad...
If you look at this one, headtube including headset, it's about 158mm. It's
51.5cm c-c.
【在 f**********e 的大作中提到】 : 就 51cm 的来说,head tube 比较长。你喜欢像 Cervelo RS 那样高高的脑袋? : 我比较喜欢低脑袋。
|
b******n 发帖数: 1269 | 56 It's really not that difficult... as long as the mechanic is not overly dumb
. Ihave cut 30+ forks and 3 ISPs. Actually no failures so far. There were
2 cases I wished they were 5mm longer, but they were merely less than ideal
... I wouldn't call them failures. The rest were all OK.
【在 f**********e 的大作中提到】 : 也就是说,锯子锯烂了就歇菜了。耶 : : see.
|
f**********e 发帖数: 1994 | 57 的确看起来不像 158mm. 难道 traditional geometry 脑袋就是要长?
我的 51cm 山寨 Kuota 脑袋只有 120mm.
It's
【在 b******n 的大作中提到】 : Actually it's not that bad... : If you look at this one, headtube including headset, it's about 158mm. It's : 51.5cm c-c.
|
f**********e 发帖数: 1994 | 58 对对对,量时墨迹切时果断。
dumb
were
ideal
【在 b******n 的大作中提到】 : It's really not that difficult... as long as the mechanic is not overly dumb : . Ihave cut 30+ forks and 3 ISPs. Actually no failures so far. There were : 2 cases I wished they were 5mm longer, but they were merely less than ideal : ... I wouldn't call them failures. The rest were all OK.
|
b******n 发帖数: 1269 | 59 The C50 is actually sloping. 50S with 4cm of slope.
【在 f**********e 的大作中提到】 : 的确看起来不像 158mm. 难道 traditional geometry 脑袋就是要长? : 我的 51cm 山寨 Kuota 脑袋只有 120mm. : : It's
|
b******n 发帖数: 1269 | 60 Here is an update -- After hours and hours of thinking, I have finally
settled with the following:
30.25 ISP (I don't like the monster size ones like 35/37-ish, I don't think
a thick SP makes a difference because the most load applies when out of the
saddle so SP is irrelevant then).
BB30 (seems slightly ahead of BB86 in the new standard contest, plus less
material and more ankle/chainstay clearance).
Mostly non-aero tubing.
Tall headtube as planned.
Tubing will have small amounts of curve, so no Parlee/Nago knockoffs for ya.
Asymetrical chainstays.
Probably straight fork (still debating whether to use standard straight fork
from manufacturer, because a new fork mold costs as much as my C50 -- Ouch)
.
Frame will incorporate features of 1-2 animals... still working on that. |
|
|
f**********e 发帖数: 1994 | 61 asymmetrical chainstay? 像 Pina 还是 Kuota?
think
the
less
ya.
【在 b******n 的大作中提到】 : Here is an update -- After hours and hours of thinking, I have finally : settled with the following: : 30.25 ISP (I don't like the monster size ones like 35/37-ish, I don't think : a thick SP makes a difference because the most load applies when out of the : saddle so SP is irrelevant then). : BB30 (seems slightly ahead of BB86 in the new standard contest, plus less : material and more ankle/chainstay clearance). : Mostly non-aero tubing. : Tall headtube as planned. : Tubing will have small amounts of curve, so no Parlee/Nago knockoffs for ya.
|
b******n 发帖数: 1269 | 62 We will know after we figure it out.
【在 f**********e 的大作中提到】 : asymmetrical chainstay? 像 Pina 还是 Kuota? : : think : the : less : ya.
|
b******n 发帖数: 1269 | 63 Here is an update: after many months of hard work, the molds are finally
done. The 3D drawings are actually really really tiresome to make.
Should have the first proto frame in a couple of days/weeks.
I have opened threads on WW, DFH and Weibo. I hope you guys will enjoy it.
Ended up being a "semi-aero" bike if there is such a thing.
Also the right manufacturer was extremely hard to come by. Too many people
are willing to cut corners. Also sourcing the right fibers was a PITA as
well.
Will have pics soon. Fingers X'ed. |
b******n 发帖数: 1269 | 64 BTW, with respect to paintjob, I am planning to hire a top airbrush painter
to do a Ghost Rider theme (yes the Nicholas Cage movie). Should be fun. |
i*********5 发帖数: 19210 | 65 Cool! Can't wait!
.
★ 发自iPhone App: ChineseWeb - 中文网站浏览器
【在 b******n 的大作中提到】 : Here is an update: after many months of hard work, the molds are finally : done. The 3D drawings are actually really really tiresome to make. : Should have the first proto frame in a couple of days/weeks. : I have opened threads on WW, DFH and Weibo. I hope you guys will enjoy it. : Ended up being a "semi-aero" bike if there is such a thing. : Also the right manufacturer was extremely hard to come by. Too many people : are willing to cut corners. Also sourcing the right fibers was a PITA as : well. : Will have pics soon. Fingers X'ed.
|
h******2 发帖数: 1498 | 66 hot!
赶紧排队订购。
.
people
【在 b******n 的大作中提到】 : Here is an update: after many months of hard work, the molds are finally : done. The 3D drawings are actually really really tiresome to make. : Should have the first proto frame in a couple of days/weeks. : I have opened threads on WW, DFH and Weibo. I hope you guys will enjoy it. : Ended up being a "semi-aero" bike if there is such a thing. : Also the right manufacturer was extremely hard to come by. Too many people : are willing to cut corners. Also sourcing the right fibers was a PITA as : well. : Will have pics soon. Fingers X'ed.
|
b******n 发帖数: 1269 | |
t****u 发帖数: 10218 | 68 Nice looking! You gave out your credit to Italians.
【在 b******n 的大作中提到】 : There you go.
|
h******2 发帖数: 1498 | |
t****u 发帖数: 10218 | 70 Sounds very interesting. I like the choices you made so far. Will you have
other sizes made or this is it? Also paint and color will be very important
to me as well. Any idea so far? |
|
|
J********e 发帖数: 2284 | 71 (tentatively)打算搞台新车,大家看拉登的这个protocol怎么样?
和老费的那个山寨Kura比起来如何? |
f**********e 发帖数: 1994 | 72 本拉登的 geometry 还不知道。如果怕麻烦不如直接跳横大叔的 PF deal 算了,不会
比山寨架
子贵太多,还多点保障。
【在 J********e 的大作中提到】 : (tentatively)打算搞台新车,大家看拉登的这个protocol怎么样? : 和老费的那个山寨Kura比起来如何?
|
b******n 发帖数: 1269 | 73 I will be using T1000 and MJ60 carbon, as you find on $4K+ bikes. 98% of
the bikes coming out of China use generic carbon... That said... I may need
to consider having a generic carbon model just to be commercially viable.
Personally I believe my model will be much better than the knock off Kuota.
The issue with many of these 山寨 frames from China is, their engineers are
not engineers. NOr do they know about racing heritage and human anatomy.
My 山寨 bike (which actually is pretty, thanks to my custom paintjob) has a
51.6 toptube. The toe overlap is fucking ridiculous. I bet 95% of
engineers in these factories have never heard of the word toe overlap. They
are completely clueless (Sorry, I know it sounds really arrogant).
【在 J********e 的大作中提到】 : (tentatively)打算搞台新车,大家看拉登的这个protocol怎么样? : 和老费的那个山寨Kura比起来如何?
|
i*********k 发帖数: 596 | |
f**********e 发帖数: 1994 | 75 任何不会断的 carbon frame 应该都比那山寨 Kuota 有保障。那山寨 Kuota
基本就是个二手 mold 工厂, 把 closed/open mold N 年前的 model 搞来
改改小地方就开工了。(它很像 04-05 间的 Kredo)Who cares about the
engineering. 我选它是因为它的 geometry 至少和 Kuota 是一样的,不至
于太离谱。toe overlap 其实比我以前的 Bianchi 还像话。
98% of
may need
viable.
Kuota.
engineers are
anatomy.
paintjob) has a
overlap. They
【在 b******n 的大作中提到】 : I will be using T1000 and MJ60 carbon, as you find on $4K+ bikes. 98% of : the bikes coming out of China use generic carbon... That said... I may need : to consider having a generic carbon model just to be commercially viable. : Personally I believe my model will be much better than the knock off Kuota. : The issue with many of these 山寨 frames from China is, their engineers are : not engineers. NOr do they know about racing heritage and human anatomy. : My 山寨 bike (which actually is pretty, thanks to my custom paintjob) has a : 51.6 toptube. The toe overlap is fucking ridiculous. I bet 95% of : engineers in these factories have never heard of the word toe overlap. They : are completely clueless (Sorry, I know it sounds really arrogant).
|
b******n 发帖数: 1269 | 76 Sorry I didn't mean to attack the Kuota lookalike.
I went to quite a few factories in China and it was my impression from
talking to them. Most of them have very little knowledge about bike
handling, such as trail, setoff, rake, reach, stack, etc. These are far
more important to bike fit and handling than mere seattube c-c measurement.
My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they
sold over 7500 of them), yet its engineering in terms of geometry is
horrible. Cluelessness can show in many different ways, and not necessarily
toe overlap. My goal is not to beat up on other brands/makes, but to share
my truest and most honest feelings when I went and talked to these "
engineers".
【在 f**********e 的大作中提到】 : 任何不会断的 carbon frame 应该都比那山寨 Kuota 有保障。那山寨 Kuota : 基本就是个二手 mold 工厂, 把 closed/open mold N 年前的 model 搞来 : 改改小地方就开工了。(它很像 04-05 间的 Kredo)Who cares about the : engineering. 我选它是因为它的 geometry 至少和 Kuota 是一样的,不至 : 于太离谱。toe overlap 其实比我以前的 Bianchi 还像话。 : : 98% of : may need : viable. : Kuota.
|
h******2 发帖数: 1498 | 77 sounds like a track geometry!!
a
They
【在 b******n 的大作中提到】 : Sorry I didn't mean to attack the Kuota lookalike. : I went to quite a few factories in China and it was my impression from : talking to them. Most of them have very little knowledge about bike : handling, such as trail, setoff, rake, reach, stack, etc. These are far : more important to bike fit and handling than mere seattube c-c measurement. : My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they : sold over 7500 of them), yet its engineering in terms of geometry is : horrible. Cluelessness can show in many different ways, and not necessarily : toe overlap. My goal is not to beat up on other brands/makes, but to share : my truest and most honest feelings when I went and talked to these "
|
h******2 发帖数: 1498 | 78 seriously, even to most cyclists, the subtlety in handling is not so obvious
. most of these things are not noticeable to the average weekend rider,
unless the bike is put to a technical course at high speed. there are very
few people in China who can afford to race on a regular basis, let along the
folks working on a cookie-cutter CAD program in Fujian.
.
they
necessarily
share
【在 b******n 的大作中提到】 : Sorry I didn't mean to attack the Kuota lookalike. : I went to quite a few factories in China and it was my impression from : talking to them. Most of them have very little knowledge about bike : handling, such as trail, setoff, rake, reach, stack, etc. These are far : more important to bike fit and handling than mere seattube c-c measurement. : My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they : sold over 7500 of them), yet its engineering in terms of geometry is : horrible. Cluelessness can show in many different ways, and not necessarily : toe overlap. My goal is not to beat up on other brands/makes, but to share : my truest and most honest feelings when I went and talked to these "
|
f**********e 发帖数: 1994 | 79 别别别,我没上火。我知道自己花 $300 买来的是什么货色... CF 一定是
最便宜的 12K, layering 应该是胡搞的,top tube中间(mold 接缝处)
carbon 舖得跟鸡巴毛一样乱(他们会喷黑漆掩饰,但有些地方连掩饰都省了)。
中国的山寨碳车厂没有 race culture, 没有风洞,没有人做应力分析,估计
甚至没人骑自己生产的车。这种环境是不可能有真正的 design/engineering
的。别要求太高啦。
Cervelo 为了研发 R5ca, 还特别做了一台特制的 soloist team, 里头装
满了 strain gauge, 如此才能知道那里要铺几层 carbon. 这放在中国估计
会被人笑掉大牙。
http://www.bikeradar.com/news/article/first-look-cervelos-ultra
r5ca-frame-26360
from
far
measurement.
2010 (they
necessarily
to share
【在 b******n 的大作中提到】 : Sorry I didn't mean to attack the Kuota lookalike. : I went to quite a few factories in China and it was my impression from : talking to them. Most of them have very little knowledge about bike : handling, such as trail, setoff, rake, reach, stack, etc. These are far : more important to bike fit and handling than mere seattube c-c measurement. : My Shanzhai frame is probably the most popular Shanzhai frame of 2010 (they : sold over 7500 of them), yet its engineering in terms of geometry is : horrible. Cluelessness can show in many different ways, and not necessarily : toe overlap. My goal is not to beat up on other brands/makes, but to share : my truest and most honest feelings when I went and talked to these "
|
b******n 发帖数: 1269 | 80 Here is an update: after many months of hard work, the molds are finally
done. The 3D drawings are actually really really tiresome to make.
Should have the first proto frame in a couple of days/weeks.
I have opened threads on WW, DFH and Weibo. I hope you guys will enjoy it.
Ended up being a "semi-aero" bike if there is such a thing.
Also the right manufacturer was extremely hard to come by. Too many people
are willing to cut corners. Also sourcing the right fibers was a PITA as
well.
Will have pics soon. Fingers X'ed. |
|
|
b******n 发帖数: 1269 | 81 BTW, with respect to paintjob, I am planning to hire a top airbrush painter
to do a Ghost Rider theme (yes the Nicholas Cage movie). Should be fun. |
i*********5 发帖数: 19210 | 82 Cool! Can't wait!
.
★ 发自iPhone App: ChineseWeb - 中文网站浏览器
【在 b******n 的大作中提到】 : Here is an update: after many months of hard work, the molds are finally : done. The 3D drawings are actually really really tiresome to make. : Should have the first proto frame in a couple of days/weeks. : I have opened threads on WW, DFH and Weibo. I hope you guys will enjoy it. : Ended up being a "semi-aero" bike if there is such a thing. : Also the right manufacturer was extremely hard to come by. Too many people : are willing to cut corners. Also sourcing the right fibers was a PITA as : well. : Will have pics soon. Fingers X'ed.
|
h******2 发帖数: 1498 | 83 hot!
赶紧排队订购。
.
people
【在 b******n 的大作中提到】 : Here is an update: after many months of hard work, the molds are finally : done. The 3D drawings are actually really really tiresome to make. : Should have the first proto frame in a couple of days/weeks. : I have opened threads on WW, DFH and Weibo. I hope you guys will enjoy it. : Ended up being a "semi-aero" bike if there is such a thing. : Also the right manufacturer was extremely hard to come by. Too many people : are willing to cut corners. Also sourcing the right fibers was a PITA as : well. : Will have pics soon. Fingers X'ed.
|
b******n 发帖数: 1269 | |
t****u 发帖数: 10218 | 85 Nice looking! You gave out your credit to Italians.
【在 b******n 的大作中提到】 : There you go.
|
h******2 发帖数: 1498 | |
b******n 发帖数: 1269 | 87 上海自行车展最佳创新产品决赛入围了。看能不能把捷安特干下来。 |
n******d 发帖数: 3583 | 88 霸气外露啊,给个新品推广厂家直销板内团购友情赠送价吧 |
t****u 发帖数: 10218 | 89 Love the paint scheme.
【在 b******n 的大作中提到】 : 上海自行车展最佳创新产品决赛入围了。看能不能把捷安特干下来。
|
y**********u 发帖数: 6366 | 90 好pp啊!
【在 b******n 的大作中提到】 : 上海自行车展最佳创新产品决赛入围了。看能不能把捷安特干下来。
|
|
|
h*****a 发帖数: 1992 | 91 re!
【在 n******d 的大作中提到】 : 霸气外露啊,给个新品推广厂家直销板内团购友情赠送价吧
|
b******n 发帖数: 1269 | |
V*****n 发帖数: 893 | 93 if the geometry works for me, sign me up for one of these too!
dig your flag and the pride!!! |
n******d 发帖数: 3583 | 94 bin董点头pull啦,大伙快form a paceline跟吧,嗬嗬
【在 b******n 的大作中提到】 : 好啊!呵呵。
|
t****u 发帖数: 10218 | 95 Pai, frame and fork. Could you post geometry? Thanks |
b******n 发帖数: 1269 | 96 There you go. The regular carbon version is priced at US$1100, and HM
carbon version at $1700. Will do US$770/1100 for the Cycling Board (ID
registered before end of 2011). Regular version is around 1150g, HM version
around 900-950g. My Proto 1 was 893g.
Would be nice to get 5+ frames to make shipping more economical.
The idea is simple, China is known of making cheap crap and copying European
ideas. Any attempt to improve that image is basically fighting against the
tides. Further diluting the image and getting a free ride is the much
easier thing to do.
There are many ways to make these cheaper but I have chosen not to go there.
I can copy a Cervelo model and take 3 months to bring this to market. I
didn't. Took me a year. I can use really shitty carbon fiber and cut my
material cost by 70%. I didn't. I can use cheap decals and cut that cost
by 87% (yes you read that right). I didn't. I could also call it Falentino
and claim it's an Italian brand. I didn't.
Well, I am glad to say this bike has at least 3 new designs and advantages
over any top end frame on the market right now.
BTW, I have a sponsorship of the best team in PRC locked up and will be
shooting some promo videos, etc... Also have a feature article in a major
western cycling magazine (not bicycle:-)) coming up in a couple of months. I
got stopped by European designers at the Taipei Bike Show countless times.
I hope this effort is meaningful in the end. Of course, I need you guys to
cheer for me. I have a thread at ww:
http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=944
Some people are saying my graphics suck, which is pretty obvious self denial
, but I tried to be cool about it... anyways, there you have it.
【在 t****u 的大作中提到】 : Pai, frame and fork. Could you post geometry? Thanks
|
p********r 发帖数: 3799 | 97 cool.
Can you share some the specifications of your bikes if it is possible ? It
is also understandable if it is confidential.
I have another question, what is the biggest frame size you could have?
let's say if I have a trek bike at size 62 or 63, what is the corresponding
size in for your bike?
Thanks
version
European
the
there.
【在 b******n 的大作中提到】 : There you go. The regular carbon version is priced at US$1100, and HM : carbon version at $1700. Will do US$770/1100 for the Cycling Board (ID : registered before end of 2011). Regular version is around 1150g, HM version : around 900-950g. My Proto 1 was 893g. : Would be nice to get 5+ frames to make shipping more economical. : The idea is simple, China is known of making cheap crap and copying European : ideas. Any attempt to improve that image is basically fighting against the : tides. Further diluting the image and getting a free ride is the much : easier thing to do. : There are many ways to make these cheaper but I have chosen not to go there.
|
n******d 发帖数: 3583 | 98 Seatpost是可调的吗?看图片像是和车身一体的 |
b******n 发帖数: 1269 | 99 Right now we don't have a size 62 and 63 simply because the molds are very
expensive to make and unless we sell a large number, it will be financially
risky. Even for Trek, some customers are asking about size 65 and Trek has
to tell them no. Same reason for size 50 shoes, etc. I am working on a
website but right now the ww thread has 90% of the info on specifications
and design features.
This is a proper ISP design. I have a short version seatpost and a long
version. Short version allows 20mm of adjustment and long version around
45mm. |
h*****a 发帖数: 1992 | 100 Great! How's the handling when you test rode yours?
Sounds like a 55cm will fit me best. What's the BB height and wheelbase for
a 55cm? Thinking about a SRAM Red build, compact crank (50/34), BB30. No
frills aluminum bars and stems. 15lb with pedals possible with 1600g wheels?
Any other color scheme than the one in the picture?
financially
has
【在 b******n 的大作中提到】 : Right now we don't have a size 62 and 63 simply because the molds are very : expensive to make and unless we sell a large number, it will be financially : risky. Even for Trek, some customers are asking about size 65 and Trek has : to tell them no. Same reason for size 50 shoes, etc. I am working on a : website but right now the ww thread has 90% of the info on specifications : and design features. : This is a proper ISP design. I have a short version seatpost and a long : version. Short version allows 20mm of adjustment and long version around : 45mm.
|
|
|
h*****a 发帖数: 1992 | 101 赞领导高帅富:-)
corresponding
【在 p********r 的大作中提到】 : cool. : Can you share some the specifications of your bikes if it is possible ? It : is also understandable if it is confidential. : I have another question, what is the biggest frame size you could have? : let's say if I have a trek bike at size 62 or 63, what is the corresponding : size in for your bike? : Thanks : : version : European
|
p********r 发帖数: 3799 | 102 你可真是冰雪聪明......
【在 h*****a 的大作中提到】 : 赞领导高帅富:-) : : corresponding
|
t****u 发帖数: 10218 | 103 Great job you've done there!
55 might be slightly too large for me so I would probably go with 53. I
might need to get some more details from you. One important question is
about warranty - I expect the frame set will come with warranty, will it?
And how will the warranty be handled?
version
European
the
there.
【在 b******n 的大作中提到】 : There you go. The regular carbon version is priced at US$1100, and HM : carbon version at $1700. Will do US$770/1100 for the Cycling Board (ID : registered before end of 2011). Regular version is around 1150g, HM version : around 900-950g. My Proto 1 was 893g. : Would be nice to get 5+ frames to make shipping more economical. : The idea is simple, China is known of making cheap crap and copying European : ideas. Any attempt to improve that image is basically fighting against the : tides. Further diluting the image and getting a free ride is the much : easier thing to do. : There are many ways to make these cheaper but I have chosen not to go there.
|
b******n 发帖数: 1269 | 104 BB height is roughly -70mm, and wheel base is probably around 985-ish. I
have another white color scheme (the carbon on this one becomes white, and
the silver becomes carbon, blue strips stay put).
Warranty from the factory is a industry standard 2 years and paint for one year, but I will take care of you either way though.
for
wheels?
【在 h*****a 的大作中提到】 : Great! How's the handling when you test rode yours? : Sounds like a 55cm will fit me best. What's the BB height and wheelbase for : a 55cm? Thinking about a SRAM Red build, compact crank (50/34), BB30. No : frills aluminum bars and stems. 15lb with pedals possible with 1600g wheels? : Any other color scheme than the one in the picture? : : financially : has
|
h*****a 发帖数: 1992 | 105 谢谢回复! BB height -70 基本是标配了。我又回头学习了一下,那个图片里的样车是
53cm的吧? 座位高度还有stem长度是根据你自己身材fit的? 我也在想55cm是不是对我
来说有些偏大,尤其是Falco的头管好像比较高。本拉灯你多高啊?
year, but I will take care of you either way though.
【在 b******n 的大作中提到】 : BB height is roughly -70mm, and wheel base is probably around 985-ish. I : have another white color scheme (the carbon on this one becomes white, and : the silver becomes carbon, blue strips stay put). : Warranty from the factory is a industry standard 2 years and paint for one year, but I will take care of you either way though. : : for : wheels?
|
w******x 发帖数: 4396 | 106 bb30 or 68mm? might have the cash for one later this year.
version
European
the
there.
【在 b******n 的大作中提到】 : There you go. The regular carbon version is priced at US$1100, and HM : carbon version at $1700. Will do US$770/1100 for the Cycling Board (ID : registered before end of 2011). Regular version is around 1150g, HM version : around 900-950g. My Proto 1 was 893g. : Would be nice to get 5+ frames to make shipping more economical. : The idea is simple, China is known of making cheap crap and copying European : ideas. Any attempt to improve that image is basically fighting against the : tides. Further diluting the image and getting a free ride is the much : easier thing to do. : There are many ways to make these cheaper but I have chosen not to go there.
|
t****u 发帖数: 10218 | 107 Thanks. I would love to see a photo of the white if you have.
year, but I will take care of you either way though.
【在 b******n 的大作中提到】 : BB height is roughly -70mm, and wheel base is probably around 985-ish. I : have another white color scheme (the carbon on this one becomes white, and : the silver becomes carbon, blue strips stay put). : Warranty from the factory is a industry standard 2 years and paint for one year, but I will take care of you either way though. : : for : wheels?
|
b******n 发帖数: 1269 | 108 Working on the white one as we speak.
The picture shows 73cm saddle height right now. I normally use 72.
Can make PF30 or BSA(English).
The fit is extremely close to a 53cm traditional Colnago. Headtube is roughly 1cm taller than most brands out there, for selfish purposes. The angles are neutral to slightly stable. Reach is roughly 5-10mm shorter than most brands. |
V*****n 发帖数: 893 | 109 such a killer deal! too bad your sizing scheme puts me in between sizes (55
and 57). I am also not too sure about the stable steering geo you use that's
popular on many euro brands. can you explain a bit more about how they
might differ from the typical us geo (73.5 HA and neutral 56mm trail)? I
tried a bike with 72.5 HA and neutral trail before and hated it. maybe it
just takes some getting use to. |
b******n 发帖数: 1269 | 110 Sorry I have been away and just got back to the capitalist world. The
updates can be seen at DFH, to save me the typing.
http://www.dongfanghong.com.cn/bbs/viewthread.php?tid=143003&ex |
|
|
i*********5 发帖数: 19210 | 111 对拉登老大的敬仰犹如涛涛江水!
【在 b******n 的大作中提到】 : Sorry I have been away and just got back to the capitalist world. The : updates can be seen at DFH, to save me the typing. : http://www.dongfanghong.com.cn/bbs/viewthread.php?tid=143003&ex
|
h*****a 发帖数: 1992 | 112 白车远看有点象Giant Advanced SL啊
内信联系?
【在 b******n 的大作中提到】 : Sorry I have been away and just got back to the capitalist world. The : updates can be seen at DFH, to save me the typing. : http://www.dongfanghong.com.cn/bbs/viewthread.php?tid=143003&ex
|
t****u 发帖数: 10218 | 113 Love the frameset in white. I think I would get the HM version. I don't see
myself doing any road racing, but still like the light weight.
Just curious do you build titanium mountain frames? and carbon mountain frames? |
t****u 发帖数: 10218 | 114 And that Giant hybrid won the gold medal? |
b******n 发帖数: 1269 | 115 Yes, that one did. I was like, WTF?
A few words on the geometry, the current 53 is very very very close to a
53cm Colnago and Cannondale, if that helps. The 53 top tube is approx 5mm
shorter, that's it. Handling is slacker than US brands, but very standard
for European brands and actually less slack than Colnago, so still a neutral
design in my mind.
We are sponsoring KUNG RACING, pls check'em out.
I am going to run a 团购 around here, although i am still doing the math on
the pricing. Should be within 10-15% of my previous indications but need to
make sure I don't violate the pricing limitations in the sponsorship
agreement.
Here is a pic of the free jersey and shorts I will include with the deal.
【在 t****u 的大作中提到】 : And that Giant hybrid won the gold medal?
|
b******n 发帖数: 1269 | 116
neutral
on
to
【在 b******n 的大作中提到】 : Yes, that one did. I was like, WTF? : A few words on the geometry, the current 53 is very very very close to a : 53cm Colnago and Cannondale, if that helps. The 53 top tube is approx 5mm : shorter, that's it. Handling is slacker than US brands, but very standard : for European brands and actually less slack than Colnago, so still a neutral : design in my mind. : We are sponsoring KUNG RACING, pls check'em out. : I am going to run a 团购 around here, although i am still doing the math on : the pricing. Should be within 10-15% of my previous indications but need to : make sure I don't violate the pricing limitations in the sponsorship
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