The Giant TCR Advanced 1 is designed from Advanced-Grade Composite and featuring an Advanced-Grade Composite fork with Full-Composite OverDrive Steerer, to offer a lightweight and versatile ride. Equipped with the precision of the Shimano 105 Di2 2x12 drivetrain, it guarantees smooth, reliable gear shifts. Shimano 105 hydraulic disc brakes paired with Giant P-R2 Disc wheels ensure impeccable control and speed modulation. The Contact AeroLight stem enhances aerodynamics, and the Variant seatpost provides just enough compliance for a race-tuned feel. Giant TCR Range ReviewKey Features:     Frame: Advanced-Grade Composite 12x142mm thru-axle, Disc     Fork: Advanced-Grade Composite, Full-Composite OverDrive Steerer, 12x100mm thru-axle, Disc     Drivetrain: Shimano 105 Di2 2x12 for precision and reliability     Brakes: Shimano 105 hydraulic disc, MPH 160/140mm rotors     Wheels: Giant P-R2 Disc wheelset, alloy, 22mm inner width     Standout Feature: Shimano 105 Di2 2x12 drivetrain for a bal