KMC X12 12 Speed ChainKMC's latest breakthrough in chain technology, the new X12 Silver 12-speed chain out-performs the competition in every aspect. Features like it's double X bridge shape, mushroom riveting and outer plate chamfering make it standout from other rival 12-speed chains. This specific chain is only compatible with SRAM Eagle 12-speed drivetrains. This includes the XX1, X01, GX, and NX levels of Eagle. The X12 chain comes with 126 links and may need to be cut down to size depending on your bike's chainstay length.FeaturesDouble x Bridge Shapeallows for fast and smooth shiftingMushroom RivetingIncreases strengthOuter Plate Chamferingprovides a more durable exteriorNon-Directional chainmeans you can't accidentally wear out your chain by running it backwardsHi-Performanceguaranteed | Kmc X12 12 Speed Chain Silver, 12 Speed, 126 Links