Sapphires

Fast and smooth Long lasting speed wherever you choose to burn! 90 duro on the outside, 101 duro on the inside. 

Sci-Fi Fantasy x Spitfire whels soft and fast  90 duro  clear riding surface bonded to a red 101 duro  Formula Four inner core.

Fast and smooth Long lasting speed wherever you choose to burn! 90 duro on the outside, 101 duro on the inside.