Powerslide Roadrunner wheels are the largest PU-wheels we use on skates! You skate mainly on asphalt with your off-road skates but want to go faster? Simply replace your 150mm tires with the Powerslide Roadrunner 150mm PU-wheels and off you go! The wheel includes two extra spacers which needs to be placed on both sides of the wheel for assembly because the core is slightly narrower than the rim of the tires. The wheel features a strong and durable glass-fiber reinforced plastic (GFRP) core. The polyurethane is fast and grips well in dry conditions. [ "Frame Spacer: AL tube,1 pc. on each side of the wheel", "Width Truck incl. Axles (Inch / MM): ", "Segments: SUV", "Net weight (kg): 0.379", "Gross weight (kg): 0.39", "Packaging Size: x x ", "Weight: 0.39", "VPE Packaging: x x ", "Warranty: 2 Years", "Release Year: 18", "Bearing Standard: 608", "Material Wheel Core: Glass-fiber reinforced plastic (GFRP) - GFK", "Sugested Use: Asphalt,concrete", "Wheel Bearing Standard: 608 standard", "Wheel Compound: Polyureathane (PU); SHR = Super High Rebound", "Wheel Core: glass-fiber reinforced plastic (GFRP) - GFK", "Wheel Diameter: 150mm", "Wheel Hardness: 85A", "Wheel Manufacturing Process: Cast", "Wheel Spacer: AL tube spacer", "Wheel Width: