t********t
发帖数: 5415 | 1 上周末人生终于又完整了一点，离停车场还有不到1mi的时候flat，被一群蚊子咬了N个
包之后换好了内胎，回家补好tube之后想到这么个问题：一条tube补几次之后算是宣告
报废？补过的tube当备胎带出去会不会有什么隐患？（假设patch job还算靠谱）
另外，flat的原因是一颗小石子刚好扎穿外胎，对于这种外胎的伤应该怎么处理？不管
？某种sealant/patch糊上？直接换掉？1000mi出头，有大概一半在trainer上 | f*b
发帖数: 91 | 2 Cracks in the tread are harmless. Small punctures in the tire such as are
typically caused by nails, tacks, thorns or glass slivers are also harmless
to the tire, since the tire doesn't need to be air-tight.
there are only two reasons for replacing old tires:
When the tread is worn so thin that you start getting a lot of flats from
small pieces of glass and the like, or the fabric shows through the rubber.
When the tire's fabric has been damaged, so that the tire has a lumpy,
irregular appearance somewhere, or the tube bulges through the tire.
http://www.sheldonbrown.com/tires.html
【在 t********t 的大作中提到】
: 上周末人生终于又完整了一点，离停车场还有不到1mi的时候flat，被一群蚊子咬了N个
: 包之后换好了内胎，回家补好tube之后想到这么个问题：一条tube补几次之后算是宣告
: 报废？补过的tube当备胎带出去会不会有什么隐患？（假设patch job还算靠谱）
: 另外，flat的原因是一颗小石子刚好扎穿外胎，对于这种外胎的伤应该怎么处理？不管
: ？某种sealant/patch糊上？直接换掉？1000mi出头，有大概一半在trainer上
| i*********5
发帖数: 19210 | 3 Well said (by Sheldon Brown)!
如果口子太多了，或者有大的（1cm+）口子了，可能就该换了。或者你骑的路上debris
比较多，经常有玻璃渣子扎进车胎，那么可能也改换新的了。
harmless
【在 f*b 的大作中提到】
: Cracks in the tread are harmless. Small punctures in the tire such as are
: typically caused by nails, tacks, thorns or glass slivers are also harmless
: to the tire, since the tire doesn't need to be air-tight.
: there are only two reasons for replacing old tires:
: When the tread is worn so thin that you start getting a lot of flats from
: small pieces of glass and the like, or the fabric shows through the rubber.
: When the tire's fabric has been damaged, so that the tire has a lumpy,
: irregular appearance somewhere, or the tube bulges through the tire.
: http://www.sheldonbrown.com/tires.html
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