Sector 9 Race Formula Freeride Wheels - 70mm/82a - Red - The New Racing formula wheels have been chemically balanced to provide insane rebound (which makes you go faster) while still maintaining the grip you need through high speed turns. Look for the nineball yellow wheels passing by on a hill or race course near you. Features - Size: 70mm - Durometer: 82a - - Sold in sets of 4 - Bearings and spacers not included.