100BS13 Sprocket With 2-3/16" Finished Bore 1.1875" Finished Bore Sprocket Size: 100BS12

Sprocket Size: 100BS12

Sprocket Size: 100B9

06B13H sprockets with a stock bore comes with the standard 10 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes

100BS15 1 15/16" Finished Bore Sprocket Dimensions

100BS13 Sprocket With 2-3/16" Finished Bore 1.1875" Finished Bore Sprocket Size: 100BS12This 100BS13 sprocket features a 2 3 16" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with 13 hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this 100BS13 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #100 roller chain and sprocket thus preventing