Put the "rad" in radioactive with the Bioradial Hazard CS 53mm 101a skateboard wheels from Madness! These wheels come in a 53mm diameter, putting them a bit on the smaller side and keeping things optimal for kick flips, while the 101a durometer is perfect for powersliding on smooth cement. Finished with a biohazard-inspired design at the sidewalls, these wheels will keep your setup looking fresh.