KMC X12 12 Speed Chain KMC'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 specifically designed for 12-speed drivetrains, including Shimano and SRAM. The X12 chain comes with 126 links and may need to be cut down to size depending on your bike's chainstay length. Oh, and did we mention it's even available in gold? Features Double x Bridge Shapeallows for fast and smooth shifting Mushroom Riveting Increases strength Outer Plate Chamferingprovides a more durable exterior Non-Directional chain allows you to install your Optimized specifically for 12-speed drivetrains Weight: 234g | Kmc | X12 12 Speed Chain | Silver | 12 Speed, 126 Links