100B17 Sprocket With Stock Bore Metric A1 Attachments This 08B21 sprocket is a

This 08B21 sprocket is a durable

Maximum Bore: 21mm

100A16 Sprocket Dimensions

Dimension (B): 7/8"

This 100BTB22 sprocket is a durable

100B17 Sprocket With Stock Bore Metric A1 Attachments This 08B21 sprocket is aThis 100B17 sprocket is a durable, high quality, and precision sprocket with 17 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 100B17 sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #100 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also fully black oxide coated