Brand New Circle industries sprocket put it right on. 50 tooth 428 chain, 4 bolt mounting at 5.5 cm on center round hole in middle is 5.8cm
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. Smaller number of teeth give you faster acceleration. Larger number of teeth give you more top speed.
Email me with any questions as products are not returnable