Odyssey F25 Fork material: 41-thermal processed 4130 Chromoly offset: 25mm dropouts: 3/8 inch slots | 4mm thick bearing race: integrated steerer tube diameter: 1 1/8 inch steerer tube length: 170mm tire clearance: fits large tires compression bolt: 24x1,5mm | 7075-T6 alloy compression bolt tool: 6mm allen key | 8mm allen key color: chrome additional information: 990 U-brake mounts custom, seamless, tapered, butted and specially formed leg tube shaping for improved grind and guard clearance steerer tube design improves fatigue strength and includes a built-in, integrated, lower headset seat race