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650b wheels have been a well-kept secret within the brevet community for decades
Cable can be used on hitch rack
Fragrance-free
Adapting it for Shimano cranks takes a special machined aluminum threaded bottom bracket that threads into itself
Perfect fit in XLAB GORILLA and CHIMP cages
CeramicSpeed T47/68 Bottom Bracket for Shimano Standard Bearing Bike Accessories_Components 650b wheels have been aT47 is a standard created by custom frame builders. Its threaded, has an inner diameter of 47mm, and is 68mm wide. It has the design benefits of being oversized and wide, but also the practical benefits of threads. The cups have CeramicSpeed bearings pressed in. There are two bearing options. The Standard Bearing has CeramicSpeed Balls and hardened steel races. The Coated Bearing has the same balls running on a 3 micron thick coating placed on top of
