Designed by JJ and manufactured from 100% 4130 chromoly throughout. Features include a heat treated mid bottom bracket shell and integrated headset head tube, double butted top tube, double butted oval down tube, folded top and down tube, externally butted seat tube with integrated seat post clamp, tapered seat stays, oval chain stays with additional tire clearance and 6mm thick dropouts. Available in brakeless or with removable brake mounts. 75.5* head tube angle, 71* seat tube angle, 9" standover, 13" chainstays