Slap on an AO Quadrum wheel and enjoy the distinctive transparent look on your stunt scooter Innovative in many ways, is the Quadrum wheel from AO Scooters. It is, to begin with, a 115mm wheel, which is not as common but swiftly gaining in popularity. Secondly, the Quadrum is made with transparency on the coloured versions, which adds a unique look. Super tough construction over a tried and tested core design You may feel it is faster than your old wheel thanks to the bigger size and the ABEC9 bearings
