I'm not sure yet if the snowmobile springs are going to work out. The springs are 109mm OAL as supplied. I first trimmed them to 102mm OAL & the throttle response was on the slow side. Next up was 96.25mm OAL and throttle response improved, however it clearly wasn't optimal. Today I shortened them to 87mm OAL & throttle response improved a bit more, yet is still not optimal. That said, no lean-bounce at 87mm, so they can go shorter still.