i have 2 ski-doo belts race compound.the 417300297 was used 1 time to warm up the sled in the pits then taken off so its like brand new. the 417300253 is never ben put on a sled so its brand new. my buddy sold the sleds so he dont need the belts. i dont know what these belts fit on but i know the belts retail for 90.00 ea so 60.00 + s&h is a real *****in deal. pm me for fast response or pics.