Shimano - CS-R8101 Ultegra 12 Speed Cassette Saddles The CrossMark is the dramatic

The CrossMark is the dramatic evolution of the cross country racing tire

BRAKES: Shimano XT M8100 Disc

completely new development

The Next Level in Sealing Power from the People who Invented Tubeless Conversions

Shimano - CS-R8101 Ultegra 12 Speed Cassette Saddles The CrossMark is the dramaticSHIMANO ULTEGRA 12 speed HYPERGLIDE+ Road Cassette Sprocket The 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.