Shimano Ultegra CS-R8101 12-Speed Cassette: Hyperglide+ Sprockets (from £59.95)
The Shimano Ultegra CS-R8101 is a 12-speed Hyperglide+ road cassette, on sale at Tredz in several ratios. We have not tested it. This page collects what Tredz lists and the current price.
Available now: Shimano CS-R8101 Ultegra 12-speed Cassette — from £59.95 at Tredz (listed RRP £119.99), correct at time of writing, 31 October 2026.
What the retailer lists
- Speeds: 12, for use with 12-speed chains.
- Sprockets: Hyperglide+ sprockets, shaped for accurate shifting and reduced wear.
- Carrier: a rigid alloy sprocket carrier to reduce weight.
- Range: Shimano offers a wide gear range for different riders. Check the ratio options and price on the Tredz page, as the price depends on the ratio you choose.
Where it fits for triathletes
The points below are our reading of the listed features, not test results.
- Drivetrain wear item. A cassette is a replacement part. We have not tested this one.
- Matching. It needs a 12-speed chain and a compatible freehub, so check your wheels and shifters first. It belongs to the Ultegra R8100 12-speed family we have reviewed.
- Price. From £59.95, which is £60.04 below the RRP.
Where to buy
Tredz lists the Shimano CS-R8101 Ultegra 12-speed Cassette at £59.95 at time of writing, and the link below goes to the same product page.
Related guides
See also the Shimano Ultegra Di2 R8100 groupset review and the Shimano Ultegra PD-R8000 pedals review.
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