Head assembly for integrated recess type. Designed for 41mm inner diameter top frame tube. For fork column diameter 28.6mm. Body made of aerospace aluminium 6061. Includes stainless steel bearing from Enduro bearings. A low profile compound does not increase the stack of your bike. The top cap contains a triple seal against dirt and water and is 15mm high. Supplied complete with headstock cap with integrated 5mm washer. Weight: 7mm - 52g | 15mm - 59g | 25mm - 66g Material: 6061 aluminum Made in USA