CeramicSpeed PF30 Bottom Bracket for Shimano Road Black Standard Bearing Shimano Ultegra – Minimum Seat Tube Length:

– Minimum Seat Tube Length: 4

provide accurate performance data

rider-tuned gearing with wide gear choices

Reduces drag by 50%

• Reversed strap closure for fast transitions

CeramicSpeed PF30 Bottom Bracket for Shimano Road Black Standard Bearing Shimano Ultegra – Minimum Seat Tube Length:The PF30 standard is widely used. To make it compatible with Shimano and other 24mm diameter thru axle cranks, as well as improve the system, select this bottom bracket. The package comes with two cups and CeramicSpeed Bearings installed. There are two options. Both Standard and Coated Bearings feature super smooth CeramicSpeed Balls and hardened steel races. The CeramicSpeed Coated Bearings have an additional feature: a 3 micron thick metallic layer