The Shimano ULTEGRA CS-R8101 HYPERGLIDE+ cassette is engineered for seamless shifting and optimal performance in road cycling. Whether tackling steep climbs or racing on flat terrains, this 12-speed cassette ensures smooth and precise gear changes under maximum pedaling force.

Featuring a refined 12-step gear combination of 11-12-13-14-15-16-17-19-21-24-27-30T, it enhances efficiency and acceleration in various racing conditions.

• Compatible with both new 12-speed and road 11-speed FREEHUB bodies
• Optimized for maximal effort shifts without backing off