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Spitfire F4 Classic 55mm 101a Skateboard Wheels

Spitfire F4 Classic 55mm 101a Skateboard Wheels
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Spitfire
Type Street/Park/Vert
Diameter (mm) 55
Duro (a) 101
Contact Patch (mm) 17.5
Lip Profile Round
Surface Smooth
Bearing Core Centerset
Colour White
Red


Spitfire F4 Classic 55mm 101a White Red Skateboard Wheels are proven and 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 55mm size will give you consistent speed for faster street skating while also maintaining a solid roll on the flat and better momentum on medium to large transition and ramps. 55mm is really the perfect size if you want to go big but not too big. 

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

The bearing core is center-set so you can reverse the wheel to save the graphic or to maintain a longer life by rotating your wheel placement over the life of the wheel. This is handy when you slide your wheel often particularly in urban terrain that can wear your wheels in an uneven way.