Spitfire Wheels Formula Four Conical Full 54mm/101a 8.0 Inverted Grade 8 kingpin w/

Inverted Grade 8 kingpin w/ 9/16" & 5

and the wheelbase ranging from 21-24″ with two close options in the front for dialing in your front foot position relative to the radial/wheel flare concave and three more spaced-out options in the rear

but it’s appropriate for most situation with it’s signature Formula 4 design

6 oz / 270 g

Highest quality and durability available

Spitfire Wheels Formula Four Conical Full 54mm/101a 8.0 Inverted Grade 8 kingpin w/Formula Four Performance Urethane is unlike any other and a world renown shape which is known and loved worldwide. Formula Four wheels retained more material, coned less and kept their original shapes and sizes longer than any other wheel. Try out the Conical Full shape that features wider riding surface and and wall that locks in beautifully on ledges and rails. Works great for street and tranny.