For sale is a 52cm, 2010 Trek XO-1 cyclocross frame and fork. The frame was purchased brand new in Febuary 2010. I immediately set the bike up single speed to ride gravel. I rode the bike into mid-summer 2010 before stripping it down and hanging it up as I replaced it with a steel frame. This frame also includes a 410 gram carbon fiber fork. The fork has a full carbon fiber steerer tube and dropouts. The fork is one of the lightest CX forks on the market (it is the same fork as the Ridley Python). The headset is an FSA CX integrated headset with cable router. The frame also includes a 195 gram Bontrager XXX Lite seatpost, and Specialized Pro-Set 110mm stem.
The frame weight is 3.4lbs. The fork weight is 410grams. My complete bike weight was sub 17lbs with nothing special setup single speed. Easily a sub-18lbs bike with gears and decent component selection.