Magneto kilo Volt 90 mm Longboard Wheels | Large Wheels | Designed for Speed | DIY Electric Skateboard Compatible - Add some energy into your ride with these massive 90mm longboard wheels designed for top speed and ultimate grip! The kiloVolt wheels use a high-quality urethane formula that produces great results for anyone looking to carry more momentum through their ride. The contact patch has a sticky skin surface which provides excellent grip while carving or bombing hills.