Material: full heat treated 4130 crmoSteerer tube size (inch): 1 1/8Steerer tube length (mm): 162Height (mm): 315Bearing race: integratedDropout size (mm): 10mmOffset (mm): 28Compression bolt: 18x1.5mmCompression bolt tool: 6mm allen keyExtra info:4mm thick drop outs,wider for better tire clearanceWeight (kg): 0.850Color: black, chrom