ISIS Drive, the International Splined Interface Standard, is an open standard splined specification for the interface between a bicycle crankset and the bottom bracket spindle. It was created by King Cycle Group, Truvativ, and Race Face in response to the proprietary Shimano Octalink splined bottom bracket standard. Because the Shimano splined interface is covered by patents, the ISIS Group created the standard and put it in the public domain so that other companies could make interoperable components. As the standards are separate, parts made for one are incompatible with those made from the other; an Octalink-standard bottom bracket (8 spline) cannot connect to an ISIS crankset (10 spline) and vice versa. One shortcoming in the design of the ISIS bottom bracket is the decreased bearing life compared to square taper bottom brackets. This is because it uses a larger diameter spindle in the same sized shell, so the bearings are smaller. Arguably, it was this shortcoming that led to the development of external bearing designs.
有时间真应该去骑骑车了
骑车要是有伴就最好了~
有没有一起骑车的兄弟?
还是自行车运动好,健康,人人能参与!
骑车虽然辛苦,但真心锻炼身体。
最后的冲刺真精彩!
今年环法简直太爽了!
看自行车赛一路的风景也不错,
为选手们喝彩!
这运动相当需要耐力和爆发力
我一般都骑公路自行车。
我也准备买个车骑一骑