Actualy. in my young stupid days I did with no tires on both rims at night, it's very weird and makes lovely lights! But to do that to this poor little bike? they did it, and because of that the rear rim is no good, so i'm forced with changing both wheels and the fenders now. well maybe i can find some thin 24" new tires from a crappy mountainbike. I fixed both fenders but I don't think the new rims will like those. it's rideable now but the rear rim gives it a slight wobble!