Spitfire Formula Four 99D Radial Skateboard Wheels Size:54mm A groove on the inside

A groove on the inside of each bearings inner race eliminates weight and allows insertion and removal of the bearing using the Bones Bearing Tool

Weight (per wheel): 6

Lubricated with Bones Speed Cream R

Weight (per wheel): 5

Standard fit T-shirt woven from sustainably and fairly grown USA cotton

Spitfire Formula Four 99D Radial Skateboard Wheels Size:54mm A groove on the insideSpitfire Formula Four 99D Radial Skateboard Wheels Tested by Spitfire Team riders, Formula Four Performance Urethanelasted longer, withstood more abuse and performed superior to all other wheels. Spitfire Formula Four Urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another. Formula Four's True lasting Performance Urethane comes not from a single benefit, but