i*********5 发帖数: 19210 | 1 http://www.bikeradar.com/news/article/stages-cycling-stageone-p
Boulder, Colorado-based company Stages Cycling is launching a new direct-
measurement power meter at Interbike that weighs just 20g and costs as
little as $699.
The StageONE power meter is built into slightly modified left-hand crankarms
and directly measures power via a strain gage array, custom electronics,
and a special algorithm that filters out non-applicable forces and
interpolates total left-plus-right output. Claimed accuracy is within +/-2
percent.
The complete model and pricing run-down is as follows, based on crank
manufacturer:
Cannondale BB30: Price TBD
Hollowgram SI SL (pre-2012, road/mtn power meter only)
Hollowgram SI SL2 road
Hollowgram SI SL2 mountain
Hollowgram SI road
Hollowgram SI mountain
Shimano:
Dura-Ace 9000, $949 power meter; $1,349 complete crankset
Dura-Ace 7900, $899 power meter; $1,299 complete crankset
Ultegra 6700, $799 power meter; $1,099 complete crankset
105 5700, $699 power meter
Dura-Ace Track, $899 power meter
XTR, $899 power meter
XT, $799 power meter
Saint, $899 power meter
DXR, $899
SRAM/Truvativ:
X9 GXP, $699 power meter; $899 complete crankset (Compatible with X7, X9
, X0, XX [166mm Q model], and many other Truvativ
X9 BB30, $699 power meter; $949 complete crankset
Rival OCT GXP, $699 power meter; $899 complete crankset (Compatible with
Apex, Rival, Force, Red, Truvativ Omnium (track), and many other Truvativ
models) |