Wheels are measured in mm (height size) and a (durometer/Hardness). a higher "mm" number means faster wheels. A higher durometer "a" number means harder wheels. Harder wheels last longer
110mm/85a upgraded Formula has incredible resilience and Rebound
Maximum roll, grip and speed are provided by the concaved spoke core design and interface with the urethane
Superior control and wear
6 wheels per set (bearings and spacers not included)