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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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(12 customer reviews)
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User submitted reviews

Review by CYinPA

Great workhorse chain
by CYinPA
Competitive Racer
PA

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.

Reviewed 3/22/2025
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Review by FuelFool

No Surprises
by FuelFool
Competitive Racer
BlueRidge Mountains NC

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.

Reviewed 1/23/2025
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Review by Al

It's a chain!
by Al
Cycling Enthusiast
AZ

I've tried to use KMC in the past and they always seem ok until I go back to Shimano. Quiet, clean shifts.

Reviewed 1/24/2025
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Review by Anonymous

Its the real deal - Ultegra rules
by Anonymous
Cycling Enthusiast
Bucks County PA

Its an OEM replacement for Shimano top quality. Who needs Dura Ace, but paid pros and bike snobs!

Reviewed 1/6/2025
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Review by Anonymous

Exactly what I needed
by Anonymous
SoCal

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.

Reviewed 5/2/2024
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Review by Anonymous

Great chains
by Anonymous
Competitive Racer
San Diego, CA

Shimano makes great chains

Reviewed 10/25/2024
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Review by Anonymous

Quality
by Anonymous

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

Reviewed 9/19/2024
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Review by Anonymous

Quality
by Anonymous

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

Reviewed 9/20/2024
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Review by Anonymous

Best value for longevity vs cost
by Anonymous

Ttied and true. Great chain for not a lot $

Reviewed 9/5/2024
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Review by William Levine

It's a chain!
by William Levine
Western Massachusetts
0 of 1 customers found this review helpful.

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

Reviewed 6/3/2024
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Review by Fuelfool

Whisper quiet
by Fuelfool
Competitive Racer
Blue Ridge Mountains
1 of 2 customers found this review helpful.

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.

Reviewed 6/18/2020
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Review by LeeAnn

Buy this chain!
by LeeAnn
Cycling Enthusiast
Scottsdale, AZ
1 of 1 customers found this review helpful.

I bought 2 - one to ride (road bike) and one for the tool box. Quiet, quick, sturdy.

Reviewed 5/8/2022
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