Mid America Question -Wheels...

Get another set of wheels to run in the pack and district races because they will get beat up on those tracks. They are not cleaned as well and have burrs in the rails. Those are lightened so much that it makes them fragile and one of my scout's mid America wheels broke at districts. The wheel hub snapped loose from the rest of the wheel.
 
John, Are the bumps on the edge of the wheel completely removed? The picture on you website looks like the bumps have been removed.