- KMC's latest breakthrough in rust protection. EcoProteQ treatment doubles the rust resistance compared to the RustBuster treatment. Benefits of the smoother coating are less noise, great performance, maximum rust resistance and great look, Double X Durability, KMC guaranties your satisfaction! * 1/2" X 11/128" - 114 Links * pin length 5,88 mm * Compatible with all 10-speed Road and MTB drive train systems * Hi-Performance * Extremely durable * NON-directional design * EcoProTeQ Anti-Rust technology * eXtra Stretchproof treatment