This is the all new version of AO Diamond Fork. This model is still composed of high quaility aluminum that has been both CNC'd and forged to keep its insane strength. If you were a fan of the original Diamond fork and/or looking to upgrade to a better compression system (HIC OR SCS), you're going to love this one. Its lighter, stronger, AND compatible with 24mm width wheels up to 125mm in diameter so you can run BIGGER and FASTER wheels! This fork includes a top cap/bolt that is meant for this fork only.