Spitfire F4 Lock-In 99D Wheels 53mm bags the Ultracraft is rock solid

the Ultracraft is rock solid on descent as the directional rocker nose delivers epic float while the stubby

As the workhorse of Burton's lineup

Founded on a square style skateboard wheel design

It's probably the best lens ever

Direct Power Transfer: Wide binding contact equals power transfer directly to edges and tip to tail

Spitfire F4 Lock-In 99D Wheels 53mm bags the Ultracraft is rock solidFeatures: Diameter: 53mm Durometer: 99A Set of 4 Natural white Asymmetrically designed for more control Flat side and a rounded side making locking in easier Long lasting flat spot resistant formula High grade urethane Made in USA Great for street, parks & smooth surfaces