I replaced all my standard wheels with new larger Polaris wheels. They stick down an extra 1/8th of an inch, just like the Ski Doo wheels. My sled also has the small diameter marginal snow yamaha wheels on the back of the sliders.
I have run 300 miles on hard icy trails with marginal snow conditions without any sticking. The sliders look like new near the Polaris wheels. The sliders are worn down more near the smaller diameter yamaha wheels as expected, but are still good.
If anyone adds the larger polaris or ski doo wheels, remember to machine the shafts in the required .060" to keep the wheels centered. These have wider bearings than the yamaha wheels. If you don't do this machining, the inside wheels will interfere with the track nubs. Wider larger replaceable bearings are a good thing! As another bonus, my Polaris wheels are candy red, to match my sleds color.
