It uses the common 5/8″ bore (inside) diameter that matches up to the 5/8″ axle shafts on many popular models
This 10 tooth jackshaft sprocket is used with size #40, #41, and 420 chain found on many go-kart and mini bikes
Milled 7/16″ keyway slot For #40, #41, & 420 chain 5/8″ bore diam eter 1-3/4″ external diameter
This is known as a Type C sprocket
This jackshaft sprocket is not compatible with the Baja & Falcon mini bikes. Product Description
Description:
This 10 tooth jackshaft sprocket is used with size #40, #41, and 420 chain found on many go-kart 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. Sprocket 10 Tooth C Type, 40/41/420 Chain, 5/8 Bore, 3/16 Keyway.
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.) In addition, this sprocket is milled for a 7/32″ shaft key.
Note:
This jackshaft sprocket is not compatible with the Baja & Falcon mini bikes. These brands use sprockets with a slightly larger 0.675″ internal diameter.
Specifications:
Tooth count: 10
Bore diameter: 5/8″
Outside diameter: 1-3/4″
Hub width: 5/8″
Milled keyway slot: 7/32″