Top grade hardened steel, will outlast an aluminium sprocket up to 3 times. Special coating for extra durability. Race proven design offers optimal strength-to-weight ratio. CAD designed and laser cut using state of the art technology. Brand MOTO-MASTER Vendor Part Number 620411150 Chain Size 420 Color/Finish Natural Material Steel Mounting Position Rear Product Name Sprocket Tooth Count 50 Type Drive Units Each















































