Spitfire Formula 4 - Lock-Ins Skateboard Wheels - Lock-Ins - 99 Duro Size:52mm It is built to feel

It is built to feel surfy and natural through powder while still holding a confident line on groomers

5” wide with a mellow concave and kicktail

A performance-focused glass and basalt layup that adds torsional strength

HAPPY™ Lens technology tunes color and contrast to sharpen details and even boost your mood

Spitfire Formula 4 - Lock-Ins Skateboard Wheels - Lock-Ins - 99 Duro Size:52mm It is built to feelDesigned for skaters who demand edge control and consistent performance, the Lock Ins bring a purpose built asymmetric profilestraight edge on one side for locked grinds, conical cut on the other for effortless slides. Matched with Spitfires Formula Four urethane in 99 duro for lasting speed and flat spot resistance, these wheels are built for tech, ledges and daily abuse. Key Features Asymmetric Lock Ins Profile: Straight edge side locks into grinds;