If you want good performance [who wouldn't riding a 900], don't buy the cheapest belt. What ever belt you choose, make sure both clutches are set up with the proper belt clearances. Store your new belt off your sled [in the off season] in a relaxed position out of sunlight in a sealed bag. Mark your belt so it only gets installed in the same direction every time.I have a 2005 ZR900 efi snopro that uses a 0627-045 belt. Has anyone had any luck with other manufacturers belts. Acat 045 are becoming hard to find and very costly.