KMC X12 Chain - OE Packaged Smooth Shifts, Every Time If your 12-speed drivetrain is only as good as its chain, you want one that keeps up with hard efforts and stays smooth when it matters. The X12 uses a Double X-Bridge link shape with precisely chamfered inner and outer plates that guide each shift cleanly, whether you're hammering up a steep gravel pitch or sprinting through a technical descent. Mushroom riveted pins hold everything together under load, so the chain doesn't falter when you're pushing hard in a big gear. This OE-packaged version is the same chain spec trusted by bike manufacturers, priced for riders who want proven performance without paying for premium coatings they don't need. Features OE Packaging this item may not be shipped in manufacturer retail packaging. Double X-Bridge link shape chamfered inner and outer plates guide smooth, fast shifts across all 12 gears Mushroom riveted pins high pin-retention strength keeps the chain locked together under heavy pedaling loads126 links included sized for most drivetrains and trimmable to fit your specific chainstay length Compatible with SRAM Eagle, Shimano, and Campagnolo 12-speed not compatible with SRAM T-Type, e TAP, or Flattop systems | Kmc | X12 Chain - Oe Packaged | Silver | 126 Links