Giant’s High Performance Grade raw carbon material is used to produce this custom frame material in our own composite factory with a high stiffness-to-weight ratio. The front triangle of these framesets is assembled and molded as one continuous piece in a proprietary manufacturing process called Modified Monocoque Construction.
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Maximize your watts during sprints, breakaways and solo attacks. This aero road machine is built to give you a real advantage against the wind. Because small gains lead to big wins.
Key Performance Factors
Integrated aerodynamics
AeroSystem Shaping, a result of CFD analysis and dynamic wind-tunnel testing, optimizes aerodynamic performance at every yaw angle. The truncated ellipse airfoil tube shapes and all-new Contact SL Aero cockpit produce superior aero performance.
Easier adjustability
All-new cable routing through the stem and head tube makes it quicker and easier to adjust or change cockpit components and fine-tune performance and riding position.
Race-winning efficiency
Advanced-grade composite frame and fork deliver optimal stiffness and weight savings. The result is an even greater stiffness-to-weight advantage.
Techs & Features
Advanced Composite Technology
AeroSystem Shaping Technology
Through CFD (Computational Fluid Dynamics) and wind-tunnel data, engineers optimize each tube shape to deliver superior aerodynamic performance.
Tubeless System
Fewer flat tires. Greater traction. Less rolling resistance and a smoother, faster ride. Giant’s Tubeless System makes it easier than ever to experience all these benefits.
OverDrive Aero
Found inside the head tube of the Defy, Propel and TCR ranges, the D-shaped fork steerer tube and corresponding spacers provide an extremely aerodynamic, easier to service system of internally routed brake and derailleur cables.
Sizing Guide and Geometry
Sizing to be used as a reference only. Please check with a local authorized dealer to determine the correct size.
Available sizes may vary from country to country.
- XS
- 157 cm5’2”
169 cm5’7”
- S
- 165 cm5’5” 175 cm5’9”
- M
- 171 cm5’7” 181 cm5’11”
- ML
- 177 cm5’10” 187 cm6’2”
- L
- 183 cm6’0” 193 cm6’4”
- XL
- 189 cm6’2” 199 cm6’6”
| XS | S | M | ML | L | XL | ||
|---|---|---|---|---|---|---|---|
| A | Seat Tube Length (mm) (inch) | 46518.3 | 50019.7 | 52020.5 | 54521.5 | 57522.6 | 59523.4 |
| B | Seat Tube Angle (degrees) | 74.5° | 74.0° | 73.5° | 73.0° | 73.0° | 72.5° |
| C | Top Tube Length (mm) (inch) | 52020.5 | 53521.1 | 55021.7 | 56522.2 | 58022.8 | 60023.6 |
| D | Head Tube Length (mm) (inch) | 1204.7 | 1305.1 | 1455.7 | 1656.5 | 1857.3 | 2007.9 |
| E | Head Tube Angle (degrees) | 71.0° | 72.3° | 73.0° | 73.0° | 73.0° | 73.0° |
| F | Fork Rake (mm) (inch) | 451.8 | 451.8 | 451.8 | 451.8 | 451.8 | 451.8 |
| G | Trail (mm) (inch) | 70.52.8 | 62.52.4 | 57.82.2 | 57.82.2 | 57.82.2 | 57.82.2 |
| H | Wheelbase (mm) (inch) | 97638.4 | 97738.5 | 98038.6 | 99139 | 100639.6 | 102040.2 |
| I | Chain Stay Length (mm) (inch) | 40515.9 | 40515.9 | 40515.9 | 40515.9 | 40515.9 | 40515.9 |
| J | Bottom Bracket Drop (mm) (inch) | 722.8 | 702.8 | 702.8 | 672.6 | 672.6 | 672.6 |
| K | Stack (mm) (inch) | 51720.4 | 52820.8 | 54521.5 | 56222.1 | 58122.9 | 59623.5 |
| L | Reach (mm) (inch) | 37614.8 | 38315.1 | 38815.3 | 39315.5 | 40215.8 | 41216.2 |
| M | Stand Over Height (mm) (inch) | 72228.4 | 75329.6 | 77030.3 | 79431.3 | 82132.3 | 83432.8 |
| N | Handlebar Width (mm) (inch) | 40015.7 | 40015.7 | 42016.5 | 42016.5 | 44017.3 | 44017.3 |
| O | Stem Length (mm) (inch) | 803.1 | 903.5 | 1003.9 | 1104.3 | 1104.3 | 1204.7 |
| P | Crank Length (mm) (inch) | 1706.7 | 1706.7 | 172.56.8 | 172.56.8 | 1756.9 | 1756.9 |
| Q | Wheel Size | 700C | 700C | 700C | 700C | 700C | 700C |
All prices and specifications are subject to change without notice.