This GFO1 is designed for endurance races and rides. The headtube, downtube, BB and chain stays are oversized and the top tube, seat tube and seat stays have thinner, more compliant sizing. The wheels and cassette hub were just overhauled and new Phil Wood bearings were added.
This is the largest BMC size (61) and weighs in at 17lb 1oz (7.73kg). It fits tall individuals, over 6’0″, like a glove.