Bicycle missing link (master link) for 12-speed chains Specifications - Speed compatibility: 12-speed - Width: 8 mm - Length: 20.6 mm - Height: 6 mm - Package: 2 pieces Material and durability - Made of manganese steel for high hardness and long service life - Not easy to deform; strong corrosion resistance - Rust resistant even in damp environments Features - Reinforced connection design for a secure chain connection - Provides smooth transmission and reduces chain failures - Compact design with ergonomic considerations for easier handling and improved operating accuracy Applications - Primarily used to connect or replace bicycle chains - Suitable for different bicycle types including mountain bikes, road bikes, folding bikes, and others What’s included - 2 pieces bicycle missing links Use scenarios - Replacing a worn or damaged master link on a 12-speed chain during routine maintenance or repair - Carrying as a spare on long rides or travel for quick field chain maintenance - Performing emergency chain repair on mountain, road, or folding bikes when a link fails, without requiring special tools