SPITFIRE FORMULA FOUR CLASSIC SKATEBOARD WHEELS 53 MM F4 99D
Spitfire Formula Four Classic Silver Swirl 53mm 99D Skateboard Wheels are the newest wheels from Spitfire and are going back to the classic swirl in the best formula on the market! Tested by Spitfire Team riders, Formula Four Performance Urethane lasted longer, withstood more abuse and performed superior to all other wheels. Spitfire Formula Four Urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another. Formula Four’s True lasting Performance Urethane comes not from a single benefit, but from a combination of qualities and features that together produce a truly great wheel Formula Four Performance Urethane is unlike any other.
Wheel Size – The 54mm size is a great all round street and park size to hold more speed in the flats and better momentum in small transition, while offering a quick and predictable pop, with a more stable lock in to you grinds. A great size for average to full sized humans to flip and grind all the street and park features.
Wheel Shape / Profile: Classic – Spitfire claim this is the #1 shape in skateboarding world wide. And it probably is. This shape first emerged in the early 90’s and has been a popular go-to ever since. It features a large radius from the bearing seat which produces a fairly narrow contact patch. It is the great all rounder. For more info read Spitfire Wheel Shapes Explained
Urethane – Formula Four 101a: Spitfire released their new Formula Four wheels a few years ago now. The latest formula was designed for higher abrasion resistance. This means it is a little harder to flat spot. Usually adorned with a red coloured graphic, the Formula Four 101A wheels are the hardest Spitfire Wheels available. They are super fast on smooth surfaces and the easiest to slide. Being super hard, if you find they let go on smooth surfaces or feel unpleasant on rougher terrain, switch back to the 99A models. There are no hard and fast rules, best to try out different wheels and select what works best for you. For more info read Spitfire Wheel Formulas Explained
Bearing core – Center-Set so you can reverse the wheel to save the graphic and help get longer life out of your wheels as you can rotated them so they burn down evenly.