From the Spitfire Wheels X Gnarhunters capsule, Elissa Steamer and Gnarhunters burning to be rad. Gnarhunters 54mm 80HD Soft Formula. 80HD is a Fast, soft and responsive. Reformulated 80 Durometer performance urethane, mechanically bonded to a lightweight inner core for true bearing seating and smoother, more consistent speed wherever you need it. The Radial Full offers a super wide riding surface with round edges for stability and versatility. 56mm x 39mm, 80A.