Honda CB125 1978-1982 Rear Sprocket 39 tooth, 428 chain, 4 bolt @6.4cm on center mount sku 7561

Brand new purchased from old line Honda dealer that went out of business

Please count  your number of sprocket teeth, and check your bolt pattern distances and center opening 

These sprockets are new and within +- 2 teeth of specified OEM sprocket sizes from Reputable Sprocket Charts.    larger  number of teeth give you faster acceleration.  smaller number of teeth give you more top speed.

Email me with any questions as products are not returnable