We spend a lot of time talking about cranksets derailleurs and all the componentry that shows up in flashy action photos and not a lot of time thinking about the part that keeps everything turning. The Easton BSA Threaded Bottom Bracket may be hidden from view but it's a key component to keeping the pedals turning smoothly. Easton's attention to detail is evident as the bottom bracket comes with claims of exceptional durability. Its protective bearing seals keep road grime out and pair with a thin low viscosity grease for smooth spinning over the miles. Please note that this bottom bracket is only compatible with Easton's gravel- road- and 'cross-friendly EC90 SL Cinch crankset.