Sprocket Honda 19 / 20 / 21 th Offset 428 CR 125 89 to 03

Honda Cr125 19 / 20 / 21 Tooth Offset Sprockets Made for Road Racing. Heat treated. Clears the case where a standard 19 or 20 th would hit before & grind a hole in the case. This is a must have in your arsenal to obtain the Ultimate Gear ratio when fine tuning you gearing. Fits Honda Cr125 engines 1989 to 2003 428 chain