6 bolt installation @ 8cm on center. NOS new It is Heavy Duty from an old Multi line dealer that went out of business. I have dozens of other new sprockets of all sizes, email me with your need.
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