TitleReduced wheel friction
CommentWhat I have done in the past and it really works is to take a small drill bit and pass it through the center hole in the wheel where the axle goes. This will make the friction between the axle and the wheel lessen. I also sand down part of the treads on the wheels so the entire wheel does not touch flat onto the track which provides less friction with the track. The whole idea that you are trying to accomplish is less friction.
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