Triumph America/Speedmaster 40T BikeMaster Rear Sprocket (525 chain) PN MBI-S525T40
$32.95
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Less rear sprocket teeth=higher top speed, more sprocket teeth=more acceleration
40 tooth rear sprocket for Triumph America and Speemaster motorcycles
Works with the transmission sprocket to determine final drive ratio
Follow the instructions in the service manual
Triumph America/Speedmaster 40T BikeMaster Rear Sprocket (525 chain) PN MBI-S525T40
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