Genuine Stomp heavy duty gold pit bike chain, manufactured by KMC and built to last. 114 link chain with a split link as standard, just remove any extra links; one chain fits all. Chain tool will be needed to remove links. Designed to fit all Stomp, WPB, Demon X and Thumpstar pit bikes with a 7mm thick (428) sprocket. Please check your current chain for compatibility, the pitch (428) is written on the chain.