1. Out of round wheels cause improper alignment at speed. This is something that is greatly mis-understood, but a car can assemble great and roll perfect on a test table but things happen at speed on the track. As a out of round wheel travels down the track and gains speed the axle will raise and drop which will cause the car pull to one side or oscillate depending on how bad or how many wheels are out of round. A fast car will be straight and VERY QUIET, noise is friction. By adding the Pro Wheel Shaver to the Pro Hub Tool a builder can shave the high spots off of molded wheels until they are completely round to the centerline of the hub, this removes all radial run-out to help make a more perfect wheel.
   
   
2. The inside edge of a molded wheel in usually not straight. The most perfect aligned cars will still touch the center strip on the track 1 or 2 times on the way down and inside edge of the wheel will effect what happens when this contact is made. If the inner edge is not true, when contact is made it will cause the car to kickback, this will usually cause a radical deflection in the direction of the car. By using the Pro Wheel Shaver, a builder can true the inner edge of the wheel as well to lessen the effects of this contact. One good kick from guide strip contact can ruin the best of runs.
   
   
3. Our testing has found that most anyone can easily make wheels that are with-in .001” diameter of each other.
   
   
4. Tip: When using the Pro Wheel Shaver, is may take several adjustments to get all of the wheels round and the same size. When changing wheels, leave the blade at your setting and loosen the tool base at the Pro Hub Tool, rock it back to clear the blade and replace the wheel with the next one. This will allow you to get all wheels the same diameter on the finish cut. Also cut until you get all of the material posiable removed, the final cuts will be very light, fuzzy plastic shavings; this will give a great finish.

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Instructional Video