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Formula Four Conical Full 99A 54mm
Spitfire F4 Conical Full 54mm 99a Embers Skateboard Wheels, the prime urethane formula wheel by Spitfire. Tested by Spitfire Team riders, Formula Four Performance Urethane lasted longer, withstood more abuse and performed superior to all other wheels.
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: Conical Full - Conical refers to the cone shape produced by using flatter surfaces from the contact patch to the side of the wheel.
Urethane - Formula Four 99A: Spitfire released their new Formula Four wheels a few years ago now. The latest formula was designed for higher abrasion resistance.
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.