Been using this cassette with my Ultegra R8100 set-up for > 1,200 miles know and have found it to work flawlessly. I was initially concerned that the 1134T wouldn't have enough high gears for descending but other than missing the 16T cog of the 11-30T it has the exact same cogs. The hyperglide+ seems to work perfectly and shifting is quick and smooth.
Product Details
Shimano’s Ultegra R8101 12-Speed Cassette provides amazing shifting under pressure, with the Hyperglide+ design moving the chain between ratios flawlessly whenever called upon. By offering 12 sprockets, Shimano has been able to reduce the jumps between gears so that it is easier to stay in the cadence sweet spot for greater efficiency and less fatigue. The combination of steel sprockets and an alloy carrier keeps the weight down whilst aiding shifting by increasing the cassette's stiffness.
Features
- Lightweight 12-speed HG+ cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes
- Hyperglide+ sprockets have been designed to reduce weight with improved teeth shaping providing accurate shifting and reduced wear
- Wide gear range to meet the demands of all types of rider
- For use with 12-speed chains
- Manufacturer claimed weight: 297 grams (11-30t)
Specifications
- Discipline Compatibility
- Road
- Speed
- 12
- Cassette [Gearing]
- 11-30
- Cassette [Maker]
- Shimano
- Cassette [Model]
- Ultegra R8101
- Family
- Shimano Ultegra
- Freehub Standard
- HG
- Intended Use
- Performance
- Speed Compatibility
- 12-speed
- Product code
- 1477489 / 54295590699354
Reviews
4.8
Value of Product
Quality of Product
Verified purchaser
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
8 questions answered
My current set is shimano 105 12 speed mechanical groupset, can I use this cassette 11-30.
Hi there, Yes you can, Many thanks Joe W
My current set up is 50-34 with 11-30 cassette (12 spd). Would I need to run a longer chain with an 11-34 cassette?
Hi Holly, Yes I would recommend you fit a new chain and resize this for the new setup, Many thanks Joe W
Want to use this Ultegra 11-34 cassette for some occasional trips to the Pyrenees for some extra steep climbs. Prefer not to have to pay for a DA cassette for such occasional use. Will this Ultegra 12spd cassette work ok with my 12spd DuraAce groupset??
Hi there, Yes this will work with the Dura-Ace groupset, Many thanks Joe W
About Shimano
Shifting the way the world rides.
From a single Osaka workshop in 1921, Shimano has grown into the world's most influential component maker. The brand's relentless engineering — Dura-Ace, Ultegra, GRX, XTR — has shaped the way the world shifts, brakes and rides, on the road and off it.
Shimano's flagship groupset, Dura-Ace, has been the benchmark for top-level road components for more than five decades. Every refinement that lands on Dura-Ace eventually shapes the entire Shimano range, all the way down to entry-level drivetrains.
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