Im puttn a extra12 in the RXL and i a 136 track. I will be doing "easy ditch runnin" and some little air. Now on the extra10, thas going in the Storm. That will be the raise hell sled and some kinda deep powder, but if you are aggresive, id reccomend the extra10 also. If you do a combo of both, then a extra12 may be worth looking into. I have the measurements if you decide to go with the extra12. You will need the mounting tabs front and rear for the extra12, for they are different. I would sujest that having the donor chasis around for the reason as to look and compair. Either way you go, good luck.
A forum community dedicated to snowmobile owners and enthusiasts. Come join the discussion about performance, racing, troubleshooting, trails, maintenance, riding tips, modifications, classifieds, gear, and more!