Expert Rating: 9.8 ( 3 Reviews )
9.8
David Arthur - Just Ride Bikes
Sep 26, 2023
The Giant Defy appears to be a well-engineered endurance bike with a focus on comfort, compliance, and a competitive weight
9.8
Overall Rating
The Giant Defy appears to be a well-engineered endurance bike with a focus on comfort, compliance, and a competitive weight
10
Weight
The claimed frame weight for a size medium is 785 grams, making it impressively light for an endurance bike.
10
Aerodynamics
The D-shaped seat post mentioned in the video, referred to as D-Fuse technology, allows for some flex, contributing to comfort, enhance aerodynamics by optimizing the airflow around the seat post area.
9
Pedaling Efficiency
The bike has good pedaling efficiency, focuses on comfort and compliance while still maintaining a low weight. Equipped with carbon fiber layup and the shape of the tubes contributing to the bike's smoothness and compliance, which indirectly relates to frame stiffness.
10
Design
The bike employs fully internal cable routing, including brake hoses, handlebar, and stem. This design choice enhances the bike's overall sleek and clean look.
10
Comfort
The handlebar is designed to flex slightly, providing comfort when encountering rough roads, cobblestones, or bumps. This flex is claimed to occur in a controlled manner to maintain stiffness during sprints.
9.5
Handling
Giant claims that the new Defy Advanced SL frame is 8.9% stiffer and has a 28% higher stiffness-to-weight ratio than the previous Defy Advanced Pro, indicating improved frame stiffness.
9.8
Bike Radar
Sep 26, 2023
The 2024 Giant Defy appears to be a significant upgrade, with a focus on weight reduction, improved frame stiffness, and enhanced handling
9.8
Overall Rating
The 2024 Giant Defy appears to be a significant upgrade, with a focus on weight reduction, improved frame stiffness, and enhanced handling
10
Weight
The Giant Defy Advanced SL frame weighs an impressive 785 grams in a size medium, making it one of the lightest endurance road bike frames available.
9.5
Aerodynamics
The fork design of the bike with flat rear faces of the fork legs aimed at enhancing aerodynamic performance.
10
Pedaling Efficiency
The bike feels fast and akin to an all-round race bike like the Giant TCR, suggests good pedaling efficiency. Giant claims that the new Defy Advanced SL frame is 8.9% stiffer and has a 28% higher stiffness-to-weight ratio than the previous Defy Advanced Pro, indicating improved frame stiffness.
9.5
Design
The handlebar, which has a similar D-shaped profile on the tops, is designed to offer both comfort and efficiency.
10
Comfort
The Defy uses a D-Fuse seat post designed to provide up to seven millimeters of flex, contributing to comfort.
10
Handling
The new Giant Defy feels faster and more composed, and it's compared to an all-round race bike, indicating responsive and agile handling.
9.8
Cycling Weekly
Sep 26, 2023
The 2024 Giant Defy appears to be a significant upgrade, with a strong focus on weight reduction, compliance, and handling improvements.
9.8
Overall Rating
The 2024 Giant Defy appears to be a significant upgrade, with a strong focus on weight reduction, compliance, and handling improvements.
10
Weight
The top-of-the-range Giant Defy Advanced SL frame weighs 785 grams, which is significantly lighter (293 grams or nearly 20% lighter) than the previous top-of-the-range model. This weight reduction is impressive for an endurance bike.
10
Aerodynamics
The new Defy's geometry changes include a lower head tube by nine millimeters for improved aerodynamics by adopting a slightly more aggressive position compared to the previous version.
9.5
Pedaling Efficiency
The changes in geometry, frame design, and weight reduction along with improved pedaling efficiency, making the bike more responsive and suitable for performance-oriented riding, and the frame maintains an appropriate balance between stiffness and comfort.
9
Design
The bike features some design elements such as the drop seat stays and the slim top tube
10
Comfort
The frame sets are said to offer 42% more compliance compared to the previous generation, indicating a focus on a smoother and more comfortable ride, and the seat post's flex contributing to comfort, particularly in absorbing road chatter.
10
Handling
The handling is a good blend between performance-oriented and relaxed. The new handlebars and stem provide a comfortable yet responsive feel, making it suitable for endurance riding
Thanks to three YouTube videos led by the pros, I’ve gathered some precious nuggets of information about the outstanding Giant Defy product. These videos weren’t just overviews; they were deep dives into the intricacies of this highly regarded road bike. I’ll break it down into manageable pieces for you to easily understand its appeal. I’ll break it down into manageable pieces for you.
Weight
Let’s start with a crucial aspect of any road bike: its weight. For a size medium, the claimed frame weight of the Giant Defy is a mere 785 grams. This lightweight figure is truly impressive, especially when you consider that the Defy is an endurance bike. It’s a testament to the bike’s engineering, showcasing its agility and performance potential.
If we zero in on the Giant Defy Advanced SL frame, the weight remains consistently impressive at 785 grams for a size medium. This makes it one of the lightest frames you can find in the endurance road bike category. It’s the kind of weight that sets the stage for an exhilarating ride, whether you’re tackling long, winding climbs or sprinting towards the finish line.
Aerodynamics
Now, let’s delve into aerodynamics. The D-shaped seat post, known as D-Fuse technology, plays a significant role in enhancing the bike’s aerodynamics. This unique seat post design allows for some flex, not only contributing to comfort but also optimizing the airflow around the seat post area. It’s a clever combination of performance and aerodynamics that makes the Defy a standout in its class.
The bike’s fork design also deserves a mention. With flat rear faces on the fork legs, it’s engineered to enhance aerodynamic performance. This design element helps the bike cut through the air with efficiency, ensuring that you can maintain higher speeds with less effort.
When we look at changes in the Defy’s geometry, there’s a noticeable focus on improving aerodynamics. The bike features a lower head tube by nine millimeters compared to the previous version. This adjustment allows for a slightly more aggressive riding position, further enhancing aerodynamic efficiency. It’s a smart move that complements the bike’s overall design and purpose.
Pedaling Efficiency/Frame Stiffness
Now, let’s shift our attention to pedaling efficiency and frame stiffness. The Giant Defy is engineered to offer an excellent balance between these two aspects. While it prioritizes comfort and compliance, it doesn’t compromise on weight or responsiveness.
Thanks to its carbon fiber layup and the carefully designed shape of its tubes, the bike delivers a smooth and compliant ride. This indirectly contributes to frame stiffness, ensuring that your power is efficiently transferred to the road. Whether you’re cruising along a scenic route or pushing the pace during a spirited ride, the Defy has the versatility to handle it all.
Riders have noted that the bike feels fast, akin to an all-round race bike like the Giant TCR. This observation suggests that the Defy boasts good pedaling efficiency. In fact, Giant claims that the new Defy Advanced SL frame is 8.9% stiffer and boasts a 28% higher stiffness-to-weight ratio compared to the previous Defy Advanced Pro model. These figures indicate a significant improvement in frame stiffness, translating to enhanced performance on the road.
The changes in geometry, frame design, and weight reduction all contribute to the bike’s responsiveness. The result is a Defy that feels agile and capable, making it suitable for performance-oriented riding. The frame strikes an appropriate balance between stiffness and comfort, ensuring that you get the best of both worlds.
Design
When it comes to design, the Giant Defy embraces a sleek and clean look. One standout feature is the fully internal cable routing, which includes brake hoses, handlebar, and stem. This design choice not only enhances the bike’s aesthetics but also contributes to its aerodynamic profile. It’s a bike that not only performs well but looks good doing it.
The handlebar is another design element worth mentioning. It features a D-shaped profile on the tops, offering both comfort and efficiency. This design allows the handlebar to flex slightly, providing added comfort when encountering rough roads, cobblestones, or bumps. Importantly, this flex occurs in a controlled manner, ensuring that stiffness is maintained during sprints or when putting down power.
Additionally, the bike incorporates some distinctive design elements, such as the drop seat stays and the slim top tube. These features not only add to the bike’s visual appeal but also contribute to its performance, particularly in terms of comfort and compliance.
Comfort
Comfort is a top consideration when it comes to endurance bikes, and the Giant Defy delivers on this front. The handlebar’s slight flex and the D-Fuse seat post, designed to provide up to seven millimeters of flex, contribute significantly to comfort. These features work together to absorb road chatter, making your ride smoother and more enjoyable.
Giant has also gone the extra mile by ensuring that the frame sets offer 42% more compliance compared to the previous generation. This significant increase in compliance indicates a strong focus on providing a smoother and more comfortable ride. It’s the kind of comfort that allows you to enjoy long rides without feeling fatigued.
Handling
Finally, let’s talk about handling. The Giant Defy is known for its exceptional handling characteristics, striking a perfect balance between performance-oriented and relaxed. Whether you’re tackling demanding descents or navigating winding roads, the Defy handles with precision and ease. It’s a bike that inspires confidence, allowing you to take control and enjoy the ride.
The new Giant Defy Advanced SL frame’s impressive stiffness figures indicate improved frame stiffness. This enhancement not only contributes to pedaling efficiency but also results in a bike that feels faster and more composed. It’s akin to an all-round race bike, suggesting that the handling is responsive and agile.
The handlebar and stem on the Defy have also been updated to provide a comfortable yet responsive feel. This combination ensures that you have the control you need, making the bike suitable for endurance riding and varied road conditions.
Overall Notes
In summary, the Giant Defy is a well-engineered endurance bike that prioritizes comfort, compliance, and a competitive weight. It’s designed to offer a smooth and enjoyable ride, making it an excellent choice for cyclists who want to tackle long distances or rough roads without sacrificing performance.
The 2024 Giant Defy represents a significant upgrade, with a strong focus on weight reduction, improved frame stiffness, and enhanced handling. It’s a bike that’s built to excel in various riding scenarios, providing both comfort and performance in abundance.
Curious to see how the Giant Defy bike compares to others? Explore our comprehensive guides for an in-depth analysis of top-quality bicycles designed to meet various cycling requirements and preferences. Inside these guides, you’ll encounter a diverse array of excellent options tailored to your liking, along with helpful resources to support you in making a well-informed decision.
So what do you think about the Giant Defy? Leave your own review and let us know.
John