Shimano Ultegra R8100/R8101 12-Speed 11-34T Cassette

Shimano Ultegra R8100 12-Speed Cassette – Seamless Shifting for Every Ride

Step into the next level of road performance with Shimano’s Ultegra R8100 12-speed cassette. Designed for smooth, uninterrupted shifts, it lets you climb, sprint, and cruise without hesitation. Larger driving cogs maximize drivetrain efficiency and retain compatibility with both 11- and 12-speed FREEHUB bodies.

HYPERGLIDE+ Technology
Building on Shimano’s revolutionary off-road system, HYPERGLIDE+ enables seamless up- and downshifts even under maximum pedaling force. Whether attacking a climb or racing a friend, your shifts remain smooth, fast, and precise.

Key Features:

• Refined 12-step gear combination for peak efficiency and acceleration
• Faster, smoother shifts under maximal pedaling load
• Compatible with 12-speed and 11-speed road FREEHUB bodies
• Retains Shimano’s hallmark durability and precision

Specifications:

• Gear Range: 11–34T
• Type: HYPERGLIDE+
• Series: Ultegra R8100
• Average Weight: 345 g
• Compatible Chain: HG 12-Speed

Maximise efficiency and enjoy next-level shifting performance with the Ultegra R8100 cassette, engineered for serious road cyclists.