Description
Shimano CN-M8100 12 Speed chain XT
Designed for ultimate performance with the Deore XT M8100 drivetrain system, the XT CN-M8100 12-speed chain offers improved chain engagement and retention. The Shimano XT features Hyperglide +, allowing a seamless inward and outward shift that is faster with less shift. For quicker and more precise shifts, you now need less effort for the chain to engage in with the next cog, while shifting up or down.
Every chain includes Shimano's new quick link, for tool-less chain removal and installation, making on-the-trail repairs easier than ever before.
Features:
Features Shimano's SIL-TEC ultra-low friction surface treatment
Shimano Quick-Link included (SM-CN910-12)
Chromizing Roller Link Plates
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.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Reviews
Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Reviewed 6/5/2025
by William Levine
Western Massachusetts
It's a chain!
In upgrading my bike to a 12-speed, electronic system, I needed a new chain. This one works!
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Reviewed 3/22/2025
by CYinPA
Competitive Racer
PA
Value Rating
Overall Rating
Great workhorse chain
Shimano chains, can't beat them. They roll fast, shift fast, strip down fast for waxing if that's your thing, all of it is good. I can't believe how fast they shift under load with the new hyperglide+ or whatever they call it, it's nuts.
No issues. Catch a sale and stock up.
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Reviewed 1/23/2025
by FuelFool
Competitive Racer
BlueRidge Mountains NC
Value Rating
Overall Rating
No Surprises
Been running XT/Ultegra forever on road, TT, mtb and e-mtb. Have never had one break. Smoother and quieter than SRAM, although I must admit that the latest generation of SRAM has finally (almost) caught up. Let me also add that since I started waxing about two years ago, my chains are lasting twice as long. And so much cleaner.
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Reviewed 1/24/2025
by Al
Cycling Enthusiast
AZ
Value Rating
Overall Rating
It's a chain!
I've tried to use KMC in the past and they always seem ok until I go back to Shimano. Quiet, clean shifts.
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Reviewed 1/6/2025
by Anonymous
Cycling Enthusiast
Bucks County PA
Value Rating
Overall Rating
Its the real deal - Ultegra rules
Its an OEM replacement for Shimano top quality. Who needs Dura Ace, but paid pros and bike snobs!
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Exactly what I needed
No surprises here. I received exactly what I was looking for, unlike when buying from other sources. This chain is quiet, smooth, and has nice longevity. I've been waxing and riding on this chain for about 4 months now with no real signs of wear or issue.
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Quality
Trust worthy bike shop where I know the product i purchase it's original and not a fake one
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Quality
Trust worthy bike shop where I know the product i purchase it's original and not a fake one
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Best value for longevity vs cost
Ttied and true. Great chain for not a lot $
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Reviewed 6/18/2020
by Fuelfool
Competitive Racer
Blue Ridge Mountains
Value Rating
Overall Rating
1 of 2 customers found this review helpful.
Whisper quiet
The new XT 12-speed system is the quietest, smoothest yet. While SRAM certainly works well, it is notably louder. I own both but do enjoy the quiet of XT.
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Reviewed 6/3/2024
by William Levine
Western Massachusetts
0 of 1 customers found this review helpful.
It's a chain!
In upgrading my bike to a 12-speed, electronic system, I needed a new chain. This one works!
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Yes/
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Reviewed 5/8/2022
by LeeAnn
Cycling Enthusiast
Scottsdale, AZ
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Buy this chain!
I bought 2 - one to ride (road bike) and one for the tool box. Quiet, quick, sturdy.
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Reviewed 4/25/2025
by Easternsierraperson
Cycling Enthusiast
Eastern Sierra
Good price on really good chains!
I probably don't need to tell anyone these are good chains. I just started hot waxing my chains on my Orbea Rise H20, so I bought 3 to put in rotation. I like saving money so I appreciated the good price! Be sure to buy these from a reputable seller like this one, as there are apparently a lot of counterfeit ones out there.
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Reviewed 10/25/2024
by Anonymous
Competitive Racer
San Diego, CA
Great chains
Shimano makes great chains
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Mechanic's Corner
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Bike chain compatibility guide for all of the major bicycle parts manufacturers
