SLP Spindles
I have have several pair. They work great on 09 through 12 Ski Doo, make the sled feel alot lighter, handles much better. Worthless on XM's 13 and up, I did not like the handling. The last set I had I put on a 14 XM 163, took them off and sold them to a guy with a 09 XP, he loves them.