10B21 Sprocket With Stock Bore Metric K1 Attachments Sprocket Size: 100BTB30

Sprocket Size: 100BTB30

Tooth Count: 60

and precision 54 tooth sprocket that is manufactured to accept a E bushing

and precision A-Plate sprocket with 32 teeth that is manufactured out of high-quality steel

Tooth Count: 31

10B21 Sprocket With Stock Bore Metric K1 Attachments Sprocket Size: 100BTB30This 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