The smooth-running KMC S1 chain impresses with its exceptionally low wear rates. Designed for use with all single-speed bikes, it's also engineered to withstand specific stresses. In addition to its excellent tensile strength thanks to reinforced pins, it boasts smooth and direct power transmission thanks to tight dimensional tolerances. The chain's smooth surface treatment positively impacts the chain's quiet running characteristics. The KMC S1 bicycle chain is designed for all standard single-speed bikes and ensures reliable operation on city bikes, touring bikes, and fixie bikes.