Tubing: Sanko Japanese Chromoly Offset: 26mm Dropouts: Invest Cast Treatment: Full post weld heat treatment for maximum strenght to weight ratio Legs: Tapared triple butted heat treated 4130 chromoly Steerer: 1 piece fully CNC heat treated chromoly Bearing race: integrated Top-Bolt: 7075-T6 al with M24 thread Front Brake cannot be installed