Specifications: Item Monocoque TT frame 700c Foldable No Size 520, 540, 560mm(TT) Material Full carbon Weight 1430±40g(520mm) Head set Top:1-1/8" Down:1-1/8” BB type BSA&BB30 Cable routing Internal cable routing Supply width Fork , seat post, headset, TT bar(420mm only), Stem(75mm only) Dia2 compatible Yes Warranty 2 year Standard En Standard Design characters: Ø The design is accord with body mechanics, effective to resist the wind drag, suitable for the sprint. Ø Super stiff and strong full carbon monocoque stucture and design. Ø Using Toray T700 carbon fiber, it's high tensile strength and modulus, good corrosion resistance, it makes the frame durable and comfortable. Ø Internal cable routing: full internal cable routing for brakes and shifter cables maintains the cleanest line for optimal aerodynamics.