Hi all. I've been doing derbys for about 4 years I believe with my son. We always do pretty well, but I really want to help him knock it out of the park this year. We normally use a wedge shape, 3 wheels, weight in back (but we never focused on actual cog), we smooth the axles (nothing too crazy) and we don't do much to the wheels aside from apply graphite to the inner bore using pipe cleaners and drill. This year we're going to try rail riding and property polishing the wheel axle.
