Giant Road Bikes Size Guide
| Size | Height Range |
| X-Small | 5'2"-5'7" |
| Small | 5'5"-5'9" |
| Medium | 5'7"-5'11" |
| Medium/Large | 5'10"-6'2" |
| Large | 6'0"-6'4" |
| X-Large | 6'2"-6'6" |
Superlight, ultra-efficient and rides like a dream. This well-rounded race bike blends industry-leading composite frame engineering with fully integrated components to help you climb, corner and descend with astonishing speed and sublime road handling.
SYSTEM OPTIMIZATION
The frameset, wheels, cockpit and other parts are engineered, developed and tested together to perform as a system. The all-new OverDrive Aero steerer tube technology is combined with a Contact SL AeroLight stem and Contact SL handlebar to incorporate internal cable routing that integrates the top cap, cables and spacers in a more aerodynamic, user-friendly setup.
WINNING EFFICIENCY
Featuring a greater stiffness-to-weight ratio than the previous generation, along with new aero tube shaping and a lighter overall weight, this uncompromising race bike delivers explosive acceleration and unyielding pedaling stiffness. The result is race-winning performance in the moments that count.
INTEGRATED AERODYNAMICS
All tube shapes are engineered and developed using Computational Fluid Dynamics (CFD) modeling and wind-tunnel testing. From the truncated ellipse shape of frameset tubing to a new cockpit design and component integration, it all adds up to a more streamlined profile that improves overall aero performance compared to the previous generation.
![Advanced Forged Composite Technology](http://bicyclewarehouse.com/cdn/shop/files/ADVANCED_FORGED_COMPOSITE_TECHNOLOGY_500x.jpg?v=1717030218")
Advanced Forged Composite Technology
A state-of-the-art high-pressure molding process is used to produce complex-shaped carbon fiber components that are lighter, stiffer and stronger than similar components made from aluminum. This technology is used in critical performance parts such as Maestro Suspension rocker links.
More Info![Compact Road Design](http://bicyclewarehouse.com/cdn/shop/files/compact-road-bike-design_500x.png?v=1720632048")
Compact Road Design
The world's first Compact Road frame is introduced and ridden by the ONCE ProTour team. With a dramatically sloping toptube and a compact rear triangle, the new design increases rigidity, improves handling and reduces weight. ONCE rider Joseba Beloki will ride the Giant TCR (Total Compact Road) to two Tour de France podiums.
More Info![Overdrive Aero](http://bicyclewarehouse.com/cdn/shop/files/OverdriveAero_500x.png?v=1720653476")
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.
More Info![Powercore](http://bicyclewarehouse.com/cdn/shop/files/powercore_500x.png?v=1715993920")
Powercore
A massively oversized bottom-bracket/chainstay area features a fully integrated, 86-millimeter wide bottom-bracket design (92-millimeter wide for off-road bikes). Asymmetric chainstays provide additional stiffness on the driveside and stability on the non-driveside.
More Info![Tubeless System](http://bicyclewarehouse.com/cdn/shop/files/tubeless_500x.png?v=1715993078")
Tubeless System
Whether you’re cornering in a crit, climbing technical singletrack or cruising through the city, you'll be free to ride without worrying about your bike's tires on your next adventure.
More Info| XS | S | M | ML | L | XL | |
|---|---|---|---|---|---|---|
| A Seat Tube Length (inch) | 16.7 | 17.5 | 18.5 | 19.7 | 20.9 | 22 |
| B Seat Tube Angle | 74.5° | 74.0° | 73.5° | 73.0° | 73.0° | 72.5° |
| C Top Tube Length (inch) | 20.5 | 21.1 | 21.7 | 22.2 | 22.8 | 23.6 |
| D Head Tube Length (inch) | 4.7 | 5.1 | 5.7 | 6.5 | 7.3 | 7.9 |
| E Head Tube Angle | 71.0° | 72.3° | 73.0° | 73.0° | 73.0° | 73.0° |
| F Fork Rake (inch) | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
| G Trail (inch) | 2.8 | 2.5 | 2.3 | 2.3 | 2.3 | 2.3 |
| H Wheelbase (inch) | 38.4 | 38.5 | 38.6 | 39 | 39.6 | 40.2 |
| I Chain Stay Length (inch) | 15.9 | 15.9 | 15.9 | 15.9 | 15.9 | 15.9 |
| J Bottom Bracket Drop (inch) | 2.8 | 2.8 | 2.8 | 2.6 | 2.6 | 2.6 |
| K Stack (inch) | 20.4 | 20.8 | 21.5 | 22.1 | 22.9 | 23.5 |
| L Reach (inch) | 14.8 | 15.1 | 15.3 | 15.5 | 15.8 | 16.2 |
| M Stand Over Height (inch) | 28.3 | 28.9 | 29.6 | 30.2 | 30.9 | 31.6 |
| N Handlebar Width (inch) | 16.5 | 16.5 | 17.3 | 17.3 | 17.3 | 17.3 |
| O Stem Length (inch) | 3.1 | 3.5 | 3.9 | 4.3 | 4.3 | 4.7 |
| P Crank Length (inch) | 6.5 | 6.5 | 6.7 | 6.7 | 6.8 | 6.8 |
At Bicycle Warehouse your satisfaction is our top priority. We understand the importance of your happiness with every purchase, which is why we proudly offer our 30 Day Love It Guarantee for your unused gear and 14 days on all bikes. Our exchange and returns process is quick and easy.
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