Model:NX250 Aero Material: T800 carbon fiber Size: 49/52/54/56/58cm Weave: UD Frame Weight: Approx 1000+/-50g Fork Weight: Approx 420+/-10g Seatpost: Approx 190+/-10g Top Headset: 1-1/8" Down Headset:1-1/2" BB: BSA/BB30