Shimano CS-R8101 Ultegra 12 Speed Cassette

Experience the flawless shifting of the GRX R8101 12-speed cassette. This range is designed for continuous performance, whether climbing, sprinting, or cruising, ensuring seamless gear transitions without hesitation. With larger cogs, this drivetrain optimizes efficiency and is compatible with both Shimano 11 and 12-speed FREEHUB bodies.

The HYPERGLIDE+ technology, initially transforming off-road biking, now advances road cycling with its smooth, efficient gear changes in both directions. The Shimano RX820 drivetrain, featuring larger cogs, ensures optimal performance even under full power, such as during climbs or sprints, without the need to ease pedal force for shifting. Compatible with existing HYPERGLIDE FREEHUB bodies and expanded to 12 gears, the GRX CS-R8101 cassette sets a new standard in road cycling efficiency.

Key Features:

• Enhanced 12-step gear configuration ensures top efficiency and accelerated performance across all race conditions.
• Achieve quicker, smoother shifts, even under intense pedaling forces.
• Fully compatible with both new 12-speed and traditional road 11-speed FREEHUB bodies.

Product Specifications