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54mm 99a Spitfire Wheels Formula Four Lock-In Full

Regular price $72.95

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Spitfire Lock-In Full Wheels

NOTE: Sold only as a set of four (4) wheels.

Diameter 54mm
Hardness 99a
Width 38mm
Riding Surface 25mm
Core No
Formula Formula Four

 

The Spitfire F4 Lock-In Full 99a skateboard wheels have a flatter side to lock on ledges or copings. 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. Formula Four 99a wheels are generally decorated with a red themed graphic. Unless of course it is one of the signature wheels. The signature wheels feature artwork custom designed for each rider. 99a is the almost hardest wheel in the modern skateboarding scene. 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.