Steel

KMC X12 12-speed bike chain comes with 126 links and a reusable quick link, compatible with Shimano 12s and SRAM Eagle 12-speed groupsets for MTB, road and gravel bikes. Its patented Double X-Bridge plates and precision chamfer design enable smooth, quiet shifting and stop chain drop on bumpy trails. Reinforced high-tensile pins resist stretching to extend service life and protect your cassette. The anti-rust electroplated surface copes with all weather and muddy rides. Standard 1/2"×11/128" size fits 10-50T to 10-52T wide-range cassettes. The included missing link supports tool-free fitting and easy cleaning. Made of high-strength steel with tight production tolerance, this factory-sealed replacement chain beats cheap generic chains in durability, great for daily commuting, trail riding.

KMC X12 12-speed bike chain comes with 126 links and a reusable quick link, compatible with Shimano 12s and SRAM Eagle 12-speed groupsets for MTB, road and gravel bikes. Its patented Double X-Bridge plates and precision chamfer design enable smooth, quiet shifting and stop chain drop on bumpy trails. Reinforced high-tensile pins resist stretching to extend service life and protect your cassette. The anti-rust electroplated surface copes with all weather and muddy rides. Standard 1/2"×11/128" size fits 10-50T to 10-52T wide-range cassettes. The included missing link supports tool-free fitting and easy cleaning. Made of high-strength steel with tight production tolerance, this factory-sealed replacement chain beats cheap generic chains in durability, great for daily commuting, trail riding.