The Quadrum line has some of AO's best products yet, these 110mm Quadrum pro scooter wheels being one of them! These wheels will keep your scooter looking fresh and rolling smooth! Not only they will last forever but these are one of the lightest stunt scooter wheels on the market - one AO Quadrum 110mm wheel weighs only 220 grams. If you've been needing a new set of wheels, then we highly recommend you give these a try.