Powell Peralta Rat Bones 90a 60mm Wheels The Powell Peralta Rat Bones 60mm 90a White Skateboard Wheels are super rad old school wheels to turn back time and give your OG setup that period correct urethane. The Rat Bones were originally introduced to the market as 'Roller Bones' roller skate wheels, but after Steve Caballero started froathing on them, the Rat Bones came to phase out the heavier Cubics & Mini Cubics. The Rat Bones are an epic all round old school wheel, with smooth 90a formula offering a smooth cruise down to the pub. Destroy bowls and vert ramps with more grip on wooden and metal ramps. Coming in the original shape, you'll be crushing coping like Caballero!