bike derail QX black

· urban ultra light 700c fixed gear, track bike

· alloy hydro formed frame with full carbon fork

· aero seat post (27.0-58.6 mm)

· weinman QX rims, superb rigidity, weight nearly equivalent to carbon rims

· sealed bearing fixed gear hubs, flip/flop

· front dual pivot caliper brake included

· fixed gear straps included

· 4 sizes, S 490, M 520, L 550, XL 580