Spitfire Formula Fours! Guido Guido 2:27 pm August 13th, 2013 Spitfire Formula Fours! New from the Spitfire labs is the Formula Four Series wheels. If you ever wanted a Spitfire wheel to last and perform similar to a Bones STF wheel with that Classic Spit shape, well here it is. Available in all sizes and 2 hardness’ now! Tags:spitfire formula four wheels 0 0 Emerica Heritic Westgate HUGE THANKS 0 Comments Leave a replyYour email address will not be published. Required fields are marked *CommentName Email Website Save my name, email, and website in this browser for the next time I comment. Δ