i ran my 3" on my sled for two rides before we put the 858 kit in. The stock motor has no problem pulling the track. quite a few guys on here are still under the impression that the X3 is a heavy track, the old 3" was yes, but the new one is actually lighter than the stock polaris track. less rotating mass and more hook up is a win win. We run different helix's in our stock sleds for better back shift, but other than all clutching can remain the same with the track swap. This track is by far the best bang for the buck performance gain. it's amazing how much better these sleds work when they are hooking up all the time instead of spinning