Death Star Bicycle Cap

thingiverse

Fits 22mm hex nut. My teenage son has cerebral palsy, and can't balance a bicycle, so we got him a trike. The factory cover for the rear wheel nuts is a plain black dome. He didn't like the look of the "granny bike", even though we excluded the fenders and cargo basket when putting it together. I suggested this and he was all over it. He is a nerd... like his father before him.