Envy Declare forks are back and better than ever. Made of 6063 series aluminum and fitted with built-in integrated headset compression (IHC), the Declare forks are super light weight and keep your front end dialed. Declare V2 forks are compatible with up to 125mm diameter wheels and even contains spacers for 28mm and 30mm wheels so no matter what wheel size your ride, Envy has you covered. Declare PRO SCOOTER FORKS are a pro scooter fork that work with the following types of compression: IHC. Envy Declare forks are IHC forks so the compression is built directly into the forks. A compression bolt on top of the forks compresses a shim onto the headset, eliminating the need to purchase external compression. Since you do not have to purchase compression AND forks when you buy IHC forks, IHC compression is an affordable and very popular compression system. The 2nd generation of Envy's Declare forks are durable forks and can be ridden on the street or at the park. The Declare pro scooter forks are compatible with the following wheel diameters: 100mm,110mm,115mm,120mm,125mm. Declare 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.