Shimano Ultegra 12-Speed Cassette (CS-R8101) Baselayer and proficient in shock absorption

and proficient in shock absorption

Flat mount hydraulic type

together with axles and different chainring options

and it offers a super-stiff hold and lightweight construction

Fumpa is the first

Shimano Ultegra 12-Speed Cassette (CS-R8101) Baselayer and proficient in shock absorptionCS R8101 has replaced CS R8100 as the Ultegra 12 Speed Cassette The uninterrupted shifting experience of the ULTEGRA R8100 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. HYPERGLIDE+ cassettes revolutionized off road shifting with its seamless shifts both up and