The spec of Mankind's flatland frame called the Alive:-Full 4130 chromoly Sanko Japanese tubing
-TT: ø32.0mm x 1.1t*0.8t*1.1t Heat-treated
-DT: ø32.0mm x 1.2t*0.9t*1.2t Heat-treated SS: ø19.0mm x -1.0t*0.7t*1.0t Heat-treated
-CS: ø19.0mm x 1.0t Heat-treated