The unique PF30A shell is 73mm wide, 46mm diameter and is specific to Cannondale. Cups and bearings adapt the shell so it is compatible with 24/22mm diameter spindle Quarq and SRAM cranks.

0.3-.04 watts of frictional drag is the “cost” to using our Standard Bearings. That’s a reduction in drag of 75% versus stock bb’s. This is the result of smart design and great execution: hardened-steel races combined with ceramic balls that are 100% smoother and 15% harder than the ceramic competition. They also last longer.

Coated Bearings last even longer and feature even lower drag. Life increases by 60% and drag drops by 50% compared to our Standard.

All Round Grease comes pre-installed in the bearings. It can be replaced for lower drag Race Day Grease, or higher durability Long Life Grease, which adds a bit of drag but stays in when riding through messy conditions.

 如何購買？
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PF30a SRAM GXP 五通軸承安裝
如果您沒有安裝五通軸承和培林的經驗，我們建議您讓當地的自行車店安裝新培林。