Bottom Brackets

Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning, while still maintaining the same level of durability and stiffness. It's available in English, Italian, or Press Fit models.

All of Chris King's bottom bracket offerings will need an appropriate Conversion Kit specific to the brand and model of crankset to be used. - 73mm Threaded BB Shell - 24mm to 22mm Stepped Mountain Cranksets - Common Cranks: SRAM mountain, Bontrager mountain, TruVativ mountain, Zinn mountain - Conversion Kit required to work with the Chris King ThreadFit 24 bottom bracket

Chris King's Bottom Bracket Conversion Kits make sure that you can match up your frame with your cranks, all while enjoying the super smooth performance of King's in-house stainless steel bearings. These adapters are compatible with frames that feature a Press Fit 30 bottom bracket.

All of Chris King's bottom bracket offerings will need an appropriate Conversion Kit specific to the brand and model of crankset to be used. - 68mm Threaded BB Shell - 24mm Road Cranksets - Common Cranks: Shimano Road, FSA road, Rotor - Conversion Kit required to work with the Chris King ThreadFit 24 bottom bracket