The smooth tapered legs and extra strong slotted dropout design make the Utopia a great fork for flatland riders wanting to put their fork through some serious abuse. Full liquid post heat-treatment on 4130 M2 chromoly. Fully cncd steerer, single butted. Integrated crown race designed to work with integrated headsets with a 45° bearing. Laser cut and cnc machined, 5mm, 4130 crmo, heat-treated for 3/8''(10mm) axle. 7075-T6 alloy topbolt, M24 thread, 3/8 socket wrench fitment. Item Specifications: Steerer Tube Material: Steel, Steer Tube Diameter: 1-1/8", Defined Color: Black, Wheel Size: 20", Offset (mm): 10, Crown Race: Integrated, Color: Black, Brake Type: None, Material: Chromoly Steel, Front Axle Type: 3/8",