Main SpecsFrame: Advanced-Grade Composite, DiscFork: Advanced-Grade Composite, Full-Composite Overdrive 2 Steerer, DiscGroupsetDerailleur: Shimano Ultegra Di2 Fd-R8150Rear Derailleur: Shimano Ultegra Di2 Rd-R8150Shifters: Shimano Ultegra Di2 St-R8170Cranks: Shimano Ultegra, 36/52 Xs:170Mm, S:170Mm, M:172.5Mm, M/L:172.5Mm, L:175Mm, Xl:175MCassette: Shimano Ultegra, 12-Speed, 11X34Front Brake: Shimano Ultegra Di2 Hydraulic, Shimano Rt-Mt800 Rotors [F]160Mm, [R]140MmRear Brake: Shimano Ultegra Di2 Hydraulic, Shimano Rt-Mt800 Rotors [F]160Mm, [R]140MmChain: Shimano UltegraBottom Bracket: Shimano, Press FitWheelsRims: Giant Slr 1 36 Carbon Disc Wheelsystem, [F] 36Mm, [R] 36MmTires: Cadex Race, Tubeless, 700X25C (26.5Mm), FoldingComponentsHandlebar: Giant Contact Slr Xs:40Cm, S:40Cm, M:42Cm, M/L:42Cm, L:44Cm, Xl:44CmStem: Giant Contact Sl Xs:80Mm, S:90Mm, M:100Mm, M/L:110Mm, L:110Mm, Xl:120MmSaddle: Giant Fleet SlSeatpost: Giant Variant, Composite, -5/+15Mm Offset