The Giant Propel Advanced 1 in Blue Dragonfly is a precision aerodynamic tool designed to turn every watt of rider input into pure velocity. Built using Giant’s Advanced-grade composite and refined through extensive wind-tunnel testing, this model features the signature AeroSystem Shaping technology. Every tube profile—from the head tube to the chainstays—has been optimized to minimize drag at the most common wind angles. The Blue Dragonfly finish is a standout aesthetic, featuring a deep, iridescent teal-blue that shifts and shimmers under different lighting conditions, giving the bike a sophisticated and high-velocity appearance that looks fast even when standing still.
The integration of the Shimano 105 Di2 12-speed electronic groupset is the defining feature of this build, offering the lightning-fast, reliable shifting of Shimano's higher-tier Ultegra and Dura-Ace models but in a more accessible package. The OverDrive Aero system keeps the cockpit remarkably clean by routing cables through the stem and into the head tube, shielding them from the wind while maintaining a setup that is easier to adjust than fully internal designs. Paired with 50mm deep Giant SLR 2 Carbon wheels, which feature hookless technology for better tire support and weight savings, the Propel Advanced 1 is a dedicated racing machine that excels in breakaways, sprints, and solo efforts on the flats.
Frameset & Geometry
Frame: Advanced-Grade Composite, 12x142mm thru-axle, disc
Fork: Advanced-Grade Composite, Full-Composite OverDrive Aero Steerer, 12x100mm thru-axle, disc
Handlebar: Giant Contact SL Aero, 31.8mm, Alloy
Stem: Giant Contact SL AeroLight, -10 Degree (Internal Cable Routing)
Seatpost: Giant Vector, Composite, -5/+15mm offset
Saddle: Giant Fleet SL
Color: Blue Dragonfly
Drivetrain & Brakes
Shifters: Shimano 105 Di2 ST-R7170, 2x12-speed
Front Derailleur: Shimano 105 Di2 FD-R7150
Rear Derailleur: Shimano 105 Di2 RD-R7150
Crankset: Shimano 105, 36/52T
Cassette: Shimano 105, 11-34T, 12-speed
Chain: KMC X12
Brakes: Shimano 105 Hydraulic Disc, RT-CL800 rotors ([F] 160mm / [R] 140mm)
Brake Levers: Shimano 105 Di2 Hydraulic
Wheels & Tires
Wheelset: Giant SLR 2 50 Carbon Disc WheelSystem, Hookless, 50mm depth
Hubs: Giant Alloy, CenterLock, 12mm Thru-Axle
Spokes: Sapim Sprint
Tires: Giant Gavia Course 1, Tubeless, 700x25c (Effective width ~26.5mm)
Max Tire Clearance: 30mm
Key Technologies
AeroSystem Shaping: Engineered using CFD and wind tunnel data, tube shapes are designed to work together as a complete system to optimize aerodynamic performance.
Advanced Composite: High-performance grade raw carbon material is woven in Giant’s own factory to produce a frame with a high stiffness-to-weight ratio.
OverDrive Aero: A D-shaped fork steerer and matching stem spacers allow for a streamlined, integrated cable setup that improves aerodynamics and maintains ease of maintenance.
Hookless Rim Design: The SLR 2 wheels feature a hookless design that enhances durability, improves tire shape for better grip, and reduces overall weight.