Complete wheelset to scooter Basic features: Diameter: 110 mm Shaft diameter: 8 mm Bearings: abec 9 Hardness: 88a Materials: aluminum past, the laws pu Color: lime green These wheel is made of one polyurethanblanding with one hardness on 88a past, the laws is equipment with some of dè fastest bearings: abec 9. Dè is perfect to tough surfaces such as asphalt.