I don't remember the belt number or where I got it from, but someone recommended a belt that worked, or at least similar quality to the stock belt. I replaced the drag specialties piece of crap that was installed with the sprocket when I got the bike. I have about 7,000 miles on this belt, I check it every time I clean the bike, and the belt has absolutely no signs of stress or unusual wear. I know adjusting the swing arm costs about the same to do the mod, I opted to go with the belt in the event me or someone I may sell the bike to at a later date decided to go back to the stock set up. If you dig around, you can find the name and part number for this belt. No worries, I've paid for something two or three times too before I got it right. Usually mufflers, this time......a good tune