2021 Giant TCR Advanced Pro 1 Disc Road Bike Specification Frame Advanced-Grade Composite, disc Fork Advanced-Grade Composite, full-composite OverDrive 2 steerer, disc Shock N/A Handlebar iant Contact SL Stem Giant Contact SL Seatpost Giant Variant, composite Saddle Giant Fleet SL Pedals N/A Shifters Shimano Ultegra Front Derailleur Shimano Ultegra Rear Derailleur Shimano Ultegra Brakes Shimano Ultegra hydraulic Brake Levers Shimano Ultegra hydraulic Cassette Shimano Ultegra, 11x30 Chain KMC X11SL-1 Crankset Shimano Ultegra, 36/52with Giant PowerPro power meter Bottom Bracket Shimano, press fit Rims Giant SLR-1 42 Carbon Disc WheelSystem (F:42mm, R:42mm) Hubs Giant SLR-1 42 Carbon Disc WheelSystem, 12mm thru-axle Spokes Giant SLR-1 42 Carbon Disc WheelSystem Tyres Giant Gavia Course 1, tubeless, 700x25mm, folding Extras Computer mount (Garmin/Wahoo/Giant compatible) Weight The most accurate way to determine any bikeâ??s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.