Shimano Ultegra CS-R8101 Cassette 12 Speed - 11-30T

The Shimano Ultegra CS-R8101 12-speed cassette is the ultimate choice for riders who want to dominate every terrain with ultra-precise and smooth shifting. Part of the ULTEGRA R8100 series, it’s designed for explosive sprints, tough climbs, and long rides without losing cadence. Larger sprockets improve transmission efficiency, providing power and responsiveness in every pedal stroke. Compatible with Shimano 11 and 12-speed hubs, it offers versatility and top performance for demanding cyclists. Get ready to shift like a true champion with the Shimano Ultegra CS-R8101 cassette.

HYPERGLIDE+ cassettes revolutionized off-road shifting with its seamless shifts both up and down the gear range. Now it's time for the technology to change road cycling. Even during maximal efforts up a climb or racing a friend, riders no longer need to back off to perform a shift. In any gear, Shimano ULTEGRA R8150 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing HYPERGLIDE FREEHUB bodies. All this while increasing to 12-gears, ULTEGRA CS-R8101 cassettes are the new paradigm in road shifting.

• Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation
• Faster, smoother shifts under maximum pedaling force
• Compatible with new 12-speed and road 11-speed FREEHUB body
• Average weight: 291 grams
• Type: HYPERGLIDE+
• Rear speeds: 12
• Compatible chain: HG 12-speed
• Combination * Titanium gear|1 11-12-13-14-15-16-17-19-21-24-27-30T
• Spline type|HG spline L2 (ROAD 12-speed dedicated)
• Aluminum spider arm|QTY (pcs): 2
• Steel gear|QTY (pcs): 12