10B21 Sprocket With Stock Bore Metric K1 Attachments Roller Width (R): 7

Roller Width (R): 7

Something that is notable about this 10B20 sprocket is that it fully meets all ISO Standards

Bore Range: 2" - 5-1/2"

100E28 sprockets are manufactured to accept a E type QD bushing which

10B21 Sprocket With Stock Bore Metric K1 Attachments Roller Width (R): 7This 10B21 sprocket is a durable, high quality, and precision sprocket with 21 teeth. Something that is notable about this 10B21 sprocket is that it fully meets all ISO Standards, which insures proper contact between the 10B 1 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also fully black oxide coated which increases resistance to the environment and will prevent early rust build up. 10B21 sprockets with a