Giant Defy Advanced Pro 0 Review


Giant’s Defy is designed for the sportive/endurance rider; it is the brand’s best road bike. It is built to run fast and efficiently while remaining comfortable over long-distance rides. This bike is aimed at everyday riders, which is why the brand pays so much attention to Defy. The older Defy version was the first bike to work with disc only. It also featured the Giant’s new D-Fuse seat post design that suppresses vibration; these features are now imitated by premium brands like Specialized, BMC, and others.

This Giant Defy Advanced Pro 0, compared with the equivalent TCR, features a shorter top tube and taller head tubes, reducing the pressure felt at the rider’s lower back and hip. This greatly improves the comfort of the rider, preventing muscle pain and sprains. Giant produced three versions of Defy, and the Defy Advanced Pro 0 is top-tier.

It’s no news that Giant is the World’s biggest bike manufacturer; with their top-grade technology, they have been leading the market for years.

Giant Defy Advanced Pro 0 Features

This advanced high-quality road bike is designed explicitly for endurance road riding and was hand-crafted by Giant’s Advanced composite. It has the perfect mix of compliance and stiffness, delivering a smooth, fast ride. Defy is often used to show off the company’s new technology in a more affordable package. As stated earlier, they were the first to innovate the D-shaped D-Fuse seat post, and this idea has been applied to the upgraded handlebar.

The features include a D-Fuse composite seat-tube that numbs vibrations and a Contact SLR D-Fuse handlebar; these features have been specially-shaped to improve compliance and eliminate road shocks and vibrations. The Contact SLR carbon D-Fuse handlebar has almost the same D-shaped profile as the seat post; the shape is to ensure the bike complies when pushed from above when you hit a pothole or rut.

This new model is said to have 10% more compliance and remains stiff when climbing and sprinting. Giant claims to increase the stiffness up to 30 percent. It is also equipped with a PowerCore bottom bracket that improves the pedaling efficiency and a tapered OverDrive 2 steerer tube to boost precision. The new frame design allows for bigger tyres; this new Advanced Pro 0 has a clearance of up to 32c, meaning it can accommodate tyres as large as 32c with ease, which certainly improves its compliance. The frame is also designed to work with disc brakes with flat mounts. Giant’s intention for Defy is not just an endurance bike; it could also be used for racing (since it has UCI approval), sportive events, commuting, and much more.

The most unexpected addition to this new Defy is the Giant Power meter, also called Power Pro; this was developed by the brand. It has been built with sensors for the left and right crank arms and displays different metrics, including watts, cadence, force angle, and pedal balance. You can pair the Power Pro with the Neostrack GPS computer from Giant or any ANT+ unit that’s compatible with the device. The battery life is up to 150 hours, and it features an LED light that shows the battery level.

Product Specification

Name: Defy Advanced Pro 0

Brand: Giant

Weight: 8.78kg

Frame: Advanced-Grade Composite

Head Tube: 22.5cm

Wheelbase: 104cm

Top Tube: 59.5cm

Seat Tube: 56.5cm

Seatpost: Giant D-Fuse SL composite

Stem: Contact SL Stealth

Wheelset: Giant SLR-1 Disc carbon, tubeless

Rear Tyre: Giant Gavia AC 1 tubeless 28c

Rear Derailleur: Shimano Ultegra Di2

Frame Material: Advanced-Grade Composite

Cranks: Shimano Ultegra with Giant Power Pro Double Sided Power Meter


Offers a smooth and fast ride

D-Fuse design improves compliance and reduces road vibrations


Saddle is just okay


When it comes to producing market-leading bikes, there’s no doubt that Giant is up to the task. With the Giant Defy Pro 0, the brand remains the best in the game. This version of Defy comes with different incredible features that make the bike much more comfortable and fast. It allows the user to enjoy a smooth and easy ride without compromising the speed. The compliance and stiffness are at maximum, and although pricey, it’s definitely worth the price.

Also, read

Giant Revolt Advanced Pro Force Review

Giant TCR Advanced Pro Disc Review

Giant TCX Advanced SX Review