Good sprocket, accurate description, simply wasn't the right size for my particular application (buyer error).For the 0.001% of shoppers who are wondering: In theory, one could mount this onto a rear Honda XR100/XR80 wheel (as was my original plan, since D.I.D does not make a gold o/x-ring chain in the 420 size), but the front sprocket would also need to be changed to a 428, there would be increased risk of damage to the case (and modification of the case may be necessary), and inertial drag would greatly increase as a heavier chain would be needed. BUT, yes, it does physically bolt onto the wheel. Do with that information as you wish, and good luck.