If you ride HIC or SCS compression, the Addict Relentless forks are a perfect pairing for your whip. Addict team riders put everything they ride to the test and the Relentless forks are no exception. These PRO SCOOTER FORKS are one of the first to be able to accomodate 30mm wheels. The forks come with spacers for both 24mm and 30mm wheels, giving you the maximum flexibility on the SCOOTER WHEELS that you want to ride. Addict pro scooter forks are an aluminum pro scooter fork that work with the following types of compression: HIC,TCS,SCS. When you purchase Relentless forks, you will need to purchase a compression system (listed previously) that is compatible with your forks, as well as scooter bars that are compatible with the selected compression system. Addict Relentless forks are durable forks and can be ridden on the street or at the park. The Addict pro scooter forks are compatible with the following wheel diameters: 100mm,110mm. Addict pro scooter forks are an extremely versatile fork and are compatible with any of the following wheel core widths: 24mm,26mm,28mm,30mm. To swap out different width wheels, you will need compatible spacers for the wheel width selected.