12 Tooth #420 Chain Jackshaft Sprocket for Torque Converters (5/8" Inside Diameter)

This 12 tooth #420 chain jackshaft sprocket for torque converters is found on many go-karts and mini bikes. It uses the common 5/8" bore (inside) diameter that matches up to the 5/8" axle shafts on many popular models. In addition, this jackshaft sprocket is rather useful to the custom go-kart or mini bike builder who wants to design and assemble their own unique machine. This is known as a Type C sprocket and the 5/8" thick hub is centered equally on both sides. (Type B sprockets have the hub offset to one side.)