we suggest using brands that come with metric threads

Ground Control

Legendary Original Bones® Swiss Bearings are the optimum combination of Bones Skate Rated™ design and Swiss precision manufacturing creating the standard by which all other bearings are measured

Thick – Maximized cushioning across the bottom of your foot for an enhanced fit and robust impact protection

Turn-Dial Size Adjustment

Spitfire F4 99a OG Classic Swirl 56MM Skateboard Wheels - White w/ Blue - Set of 4 Boosted we suggest using brands thatSF F4 99a CLASSIC SWIRL 56mm WHT W BLUE is available to buy in increments of 4 FORMULA 4 Product SKU 1WSFW0F499C560B More Information Brand Spitfire Package Size 1 SINGLE PIECE Age Group All Ages Color WHITE Gender ALL Construction Spitfire Formula Four Classic Diameter 56MM Durometer 99A