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Shimano XT/Ultegra CN-M8100 12 Speed Chain

ShimanoXT/Ultegra CN-M8100 12 Speed Chain(Return to Product Page)

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(14 customer reviews)
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User submitted reviews

Review by William Levine

Reviewed 6/5/2025
by William Levine
Western Massachusetts
Overall Rating
It's a chain!

In upgrading my bike to a 12-speed, electronic system, I needed a new chain. This one works!

Thank you for your feedback.

Review by CYinPA

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.

Thank you for your feedback.

Review by FuelFool

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.

Thank you for your feedback.

Review by Al

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.

Thank you for your feedback.

Review by Anonymous

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!

Thank you for your feedback.

Review by Anonymous

Reviewed 5/2/2024
by Anonymous
SoCal
Overall Rating
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.

Thank you for your feedback.

Review by Anonymous

Reviewed 9/19/2024
by Anonymous
Overall Rating
Quality

Trust worthy bike shop where I know the product i purchase it's original and not a fake one

Thank you for your feedback.

Review by Anonymous

Reviewed 9/20/2024
by Anonymous
Overall Rating
Quality

Trust worthy bike shop where I know the product i purchase it's original and not a fake one

Thank you for your feedback.

Review by Anonymous

Reviewed 9/5/2024
by Anonymous
Overall Rating
Best value for longevity vs cost

Ttied and true. Great chain for not a lot $

Thank you for your feedback.

Review by Fuelfool

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.

Thank you for your feedback.

Review by William Levine

Reviewed 6/3/2024
by William Levine
Western Massachusetts
Overall Rating
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!

Thank you for your feedback.

Review by LeeAnn

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.

Thank you for your feedback.

Review by Easternsierraperson

Reviewed 4/25/2025
by Easternsierraperson
Cycling Enthusiast
Eastern Sierra
Overall Rating
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.

Thank you for your feedback.

Review by Anonymous

Reviewed 10/25/2024
by Anonymous
Competitive Racer
San Diego, CA
Overall Rating
Great chains

Shimano makes great chains

Thank you for your feedback.

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