- Diameter: 54 mm
- Hardness: 90 duro clear riding surface bonded to 101 duro Formula Four inner core
- Shape: Radials
- Set of 4
Introducing Spitfire's newest soft 90 Duro cruiser wheels, the Sapphires. A newly developed 90DU clear riding surface, bonded to a 101DU Formula Four inner core, gives you fast, smooth, long-lasting speed wherever you choose to burn.