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Description
Up Your 1x Range
The Shimano XT CS-M8000 11-Speed Cassette shaves weight while maintaining durability thanks to an alloy spider and largest cog matched with the rest of the cogs made from steel. This DYNA-SYS11 cassette delivers precise shifting even in the most demanding off-road situations.
Features:
- Optimized gear combination and gear ratio
- Wide cassette sprocket
- Rhythm step gear progression
- Improved driving efficiency and stable shifting
- Optimal balance of lightweight and durable
- Combination of aluminum and steel gears
- At home in a GRX gravel or XT MTB drivetrain
- Comes in OEM Packaging
Specs:
- 11-40: 11, 13, 15, 17, 19, 21, 24, 27, 31, 35, 40
- 11-42: 11, 13, 15, 17, 19, 21, 24, 28. 32, 37, 42
- 11-46: 11, 13, 15, 17, 19, 21, 24, 28, 32, 37, 46
- HG Freehub compatible
- 440 g (11-42T)
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Specifications
Cassette Use: MTB | |
Drivetrain Speed: 11-Speed | |
Cassette Type: Shimano HG | |
11-40T | Mfg PartNum: ICSM8000140 |
11-42T | Mfg PartNum: ICSM8000142 |
11-46T | Mfg PartNum: ICSM8000146 |
Reviews
I bought this for using on my GRX 810 2X11 setup. It works without modification (i.e. you do NOT need a road link or goat link to make this work). All you need to do is screw in your B-screw more than for other cassettes. You may want to put a bit of purple locktite (this kind is designed for set screws) on your B-screw to make sure it keeps its setting. Cross chaining at the extremes is noisier than say a 11-34 cassette, but usable if needed for bailout.
It took about 50 miles of use to break in and once it did, it is extremely smooth. This is a great gearing option if you a have a lot of climbing planned for your ride.
I don't use this cassette every day, but when I need it, it makes a bid difference to spin instead of burning out your legs grinding away.
Gear range upgrade for my gravel bike, good Shimano quality. Price was good, shipping fast. Only issue was they refused to ship it to the hotel I was staying at which is odd. Had to get it sent to a friends residential address instead.
The standard GRX gearing wasn't cutting in the areas I ride. Hills in all directions, so I started to do some research and a couple of YouTubers said they had success with this cassette and a Wolf Tooth DM. I got both, it took about 1 hour to swap on this cassette, swap in the Wolf Tooth and adjust the B tension clearance.
The shifting is superb and I have zero regrets on upgrading the GRX 815 gearing :)
I've got a set of bullet proof alloy DT Swiss wheels I use for bikepacking/touring on my gravel bike and I wanted an extra climbing gear for when I'm loaded with gear. Thankfully you can adjust a GRX rear derailleur to accommodate an 11-40 rear cassette.
I replaced a worn DuraAce cassette with the Shimano M8000 for more durability in winter months. The fit and efficiency is excellent and Ive not noticed any issues in shifting. Great recommendation for the swap by Seth! Thanks again!
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