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.
With effortless efficiency and quiet compliance, this lightweight endurance road machine helps you ride stronger and longer. The composite frame and purpose-built components smooth out rough roads and minimize fatigue.
Key Performance Factors
Functional simplicity
Free of cumbersome gimmickry, the frameset is one of the lightest in its category. With a perfect balance of high-performance reactivity and all-day comfort, it offers a “less is more” experience for modern endurance road riding.
Engineered compliance
Advanced-grade composite frame and fork are specifically engineered for endurance road riding, delivering a smooth and efficient ride quality that minimizes fatigue on long rides. The new D-Fuse components work together to further absorb road shocks and vibrations.
Total control
New Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for comfort and control on all-day rides. Wide, alloy rims are optimized for high-volume tubeless tires (up to 38mm), providing predictable handling and stability from asphalt to cobbles.
Techs & Features
Advanced Composite Technology
Compact Road Design
Introduced by Giant with the professional Team ONCE in the 1990s, Compact Road revolutionized the look and feel of high-performance road bikes forever. A downward sloping toptube (from the headtube to the seattube) creates smaller front and rear triangles for a lighter, stiffer bike. It also makes it easier for riders of all sizes to have a perfect fit.
D-Fuse Technology
The D-Fuse seatpost and handlebar were designed to function as a system, absorbing road shocks and vibrations so you can ride farther, faster.
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.
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.
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.
- 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”
| S | M | ML | L | XL | ||
|---|---|---|---|---|---|---|
| A | Seat Tube Length (mm) (inch) | 44517.5 | 48018.9 | 51520.3 | 53521.1 | 56522.2 |
| B | Seat Tube Angle (degrees) | 74.0° | 73.5° | 73.0° | 73.0° | 73.0° |
| C | Top Tube Length (mm) (inch) | 53020.9 | 54521.5 | 56022 | 57522.6 | 59523.4 |
| D | Head Tube Length (mm) (inch) | 1405.5 | 1505.9 | 1756.9 | 1957.7 | 2158.5 |
| E | Head Tube Angle (degrees) | 71.8° | 72.5° | 72.5° | 72.5° | 72.5° |
| F | Fork Rake (mm) (inch) | 502 | 502 | 502 | 502 | 502 |
| G | Trail (mm) (inch) | 63.42.5 | 58.62.3 | 58.62.3 | 58.62.3 | 58.62.3 |
| H | Wheelbase (mm) (inch) | 99439.1 | 99839.3 | 101039.8 | 102540.4 | 104040.9 |
| I | Chain Stay Length (mm) (inch) | 42016.5 | 42016.5 | 42016.5 | 42016.5 | 42016.5 |
| J | Bottom Bracket Drop (mm) (inch) | 753 | 753 | 702.8 | 702.8 | 702.8 |
| K | Stack (mm) (inch) | 54121.3 | 55822 | 57722.7 | 59623.5 | 61524.2 |
| L | Reach (mm) (inch) | 37514.8 | 38015 | 38415.1 | 39315.5 | 40215.8 |
| M | Stand Over Height (mm) (inch) | 73328.9 | 76230 | 79631.3 | 81432 | 84133.1 |
| N | Handlebar Width (mm) (inch) | 40015.7 | 42016.5 | 42016.5 | 44017.3 | 44017.3 |
| O | Stem Length (mm) (inch) | 903.5 | 1003.9 | 1003.9 | 1104.3 | 1104.3 |
| P | Crank Length (mm) (inch) | 1706.7 | 172.56.8 | 172.56.8 | 1756.9 | 1756.9 |
| Q | Wheel Size | 700C | 700C | 700C | 700C | 700C |
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