SRAM XX1 Vs KMC X12
 

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SRAM XX1 Vs KMC X12

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Posts: 2923
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Longevity and performance on sram AXS - any opinions?

 
Posted : 22/09/2025 4:37 pm
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For reference I’ve just checked the wear on my X01 chain paired with X01 AXS and XX1 cassette after approx 6000km and it’s showing zero wear. 

 
Posted : 22/09/2025 4:48 pm
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Zero wear?? After 4000 miles?

 
Posted : 22/09/2025 4:56 pm
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ZFC always rate the hard chrome finish on high end SRAM chains as exceptionally durable. Garbaruk,for some reason, recommended against kmc on their cassettes.

Having said all that, I run 4 kmc chains on a garbaruk cassette without issue. Chains are a few years old which I put down to hot waxing.

A well looked after chain with always out last a neglected one, whatever brand you're considering 

 
Posted : 22/09/2025 6:12 pm
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If my chain measuring device showed zero wear after 4000miles I’d be looking for another chain checker. The Pedros chain checker is pretty good. I use 3 different chain checkers. 

I’ve never had a more expensive chain last longer but that’s maybe because I haven’t tried a top of the line one. 

 

 
Posted : 22/09/2025 6:32 pm
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Zero wear?? After 4000 miles?

Correct. I haven’t measured it with a ruler but both the Shimano TL-CN42 and ParkTool CC4.2 checkers sit on top of the rollers which is the same as when new. I have two chains on rotation that I have been using since I bought the bike which has done 12500km. It’s an electric gravel/road bike and I wax the chains. I measured it before a rewaxing so there was as little wax as possible in the rollers. 

 
Posted : 22/09/2025 6:44 pm
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I can believe it. Posher SRAM cassettes and chains are made from vibranium, alloyed with adamantium, it would seem

 
Posted : 22/09/2025 6:50 pm
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I always use XO1 cassettes with XX1 chains, and I check them all the time, but minimal wear, can't say none but minimal for the 700Miles its covered so far. 3x the cost but 3x the life.

 
Posted : 23/09/2025 7:17 am

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