'Changes to the original Six13: A single-butted aluminium alloy seat tube instead of carbon, but sticking with carbon top and down tubes (along with a hint of boron thrown in the latter, the material claimed to be stiffer under compression); CAAD8 style drop-outs, saving 30 grams; and semi-compact geometry (2cm of top tube slope for sizes 55cm-63cm, and 3cm for sizes 48cm-54cm), designed to save weight and increase stand-over height. The result: a claimed frame weight of 1,190 grams, and when weighed, a total bike weight of 7.51 kilos...' More
