Shimano Ultegra CS-R8101 / R8100 12 Speed Cassette Staff-Picks Thread together BB for 386EVO

Thread together BB for 386EVO and BBRIGHT frames and 30mm spindle diameter cranks

shock resistance and dimensional control

along with a visual indicator on the LCD screen

this means heavy and difficult-to-install inserts aren’t necessary to keep your wheels and tires protected and you can pick the tires

123g (rear)

Shimano Ultegra CS-R8101 / R8100 12 Speed Cassette Staff-Picks Thread together BB for 386EVOThe uninterrupted shifting experience of the ULTEGRA R8101 12 speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12 speed FREEHUB bodies. Take your road bike performance to the next level with the Shimano Ultegra CS R8100 12 Speed Cassette. Designed for Shimanos latest generation 12 speed road