Main SpecsFrame: Advanced-grade Composite, 12x142mm thru-axle, discFork: Advanced SL-grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, discGroupsetDerailleur: Shimano 105 Di2 FD-R7150Rear Derailleur: Shimano 105 Di2 RD-R7150Shifters: Shimano 105 Di2Cranks: Shimano 105, 36/52 with Giant Power Pro power meter XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mmCassette: Shimano 105, 12-speed, 11x34Front Brake: Shimano 105 Di2 hydraulic, Shimano RT-CL700 rotors [F]160mm, [R]140mm Shimano 105 Di2Rear Brake: Shimano 105 Di2 hydraulic, Shimano RT-CL700 rotors [F]160mm, [R]140mm Shimano 105 Di2Chain: KMC X12L-1Bottom Bracket: Shimano, press fitWheelsRims: Giant SLR 1 40 WheelSystem, [F]40mm, [R]40mmTires: Giant Gavia Course 0, tubeless, 700x28c (28mm), foldingComponentsHandlebar: Giant Contact SL XS:420/370mm, S:420/370mm, M:440/390mm, M/L:440/390mm, L:440/390mm, XL:440/390mmStem: Giant Contact SL AeroLight XS:80mm, S:90mm, M:100mm, M/L:110mm, L:110mm, XL:120mm