2013 GT Avalanche 3.0 frame 6061 aluminium size small (16" from centre of bottom bracket to top of seat tube) reach is 20.5" from centre of seat tube to centre of head tube head tube is 110mm long and 44mm diameter top and bottom, this means it can accept a tapered steerer fork bottom bracket is 73mm wide and threaded for standard English /BSA seat post size is 30.9mm seat clamp/front derailleur 34.9mm for 26" disc only wheels standard 135mm OLN width frame has no dents or cracks just scuffs and scratches etc.. still a nice frame, will build up into a fine and capable MTB
