Our unique Delta Core 5 spoke design, incorporates the exclusive deep claw anti-dehubbing device, anodised and laser etched graphics. Comes complete with Sacrifice Roller Coaster Bearings and spacers, also our world first Rebound PU and high wall design, developed over 18 months by the Sacrifice Pro Riders and expert design team. The Delta Core is used on all our Flyte scooter and now available and sold separately due to an overwhelming demand. Core Material: Extruded 6061-T6 Al Tyre Material: 88A Hand Poured Polyurethane New High wall rebound design Rolling Diameter: 110mm Core diameter: 80mm Weight: 220 (includes both bearings and spacer)