SUMC 12S Crescent Hollow Bike Chain 126 Links Ultralight Electroplated Smooth Shifting Chain For Shimano 12S MTB Road Bike

Product Introduction1.Brand: SUMC Model: SX12SL | Speed: 12 Speed | Links: 126 Links | Structure: Crescent Semi-Hollow Design.Ultra-light weight only ~245g, reduce bike load for faster climbing and racing.2.Precision asymmetrical chamfer design for ultra-smooth, silent shifting without chain jam.Optimized tooth matching perfectly compatible with Shimano 12-speed drivetrain systems.3.Multi-layer vacuum electroplated surface, anti-rust & wear-resistant, long service life for muddy mountain trails & long-distance road cycling.High tensile steel chain plate, strong load-bearing, not easy to stretch or break.