Polaris and Ski-Doo snowmobiles are what we designed our axle around. So the stock bolts work perfectly with our EZ WheelZ. But if you have installed aftermarket skis and no longer use the factory bolts you may want to measure the bolt length and order a set of bolts when you purchase the wheels for your sled. To make sure look at your bolt and make sure that you have at least 3/8" of thread showing.
