Giant Defy Advanced Pro 2

A great endurance bike with a bit of zip to it


  • Weight:
  • Weight:


  • Comfortable over long miles
  • Stiff and agile when you want to ride fast
  • Integrated speed/cadence sensor
  • Impressive Shimano disc brakes


  • Could be more comfortable over really rough surfaces

Price as reviewed:


Established in Taiwan in 1972, Giant has been supplying high quality bikes to professionals – such as WorldTour team Giant-Alpecin – and amateurs alike for over 40 years. Part of Giant’s success has been the ability to create bikes that perform well in real life, not just in a wind tunnel.

Buy now: Giant Defy Advanced Pro 2 2017 model at Tredz for £2,499

>>> Giant Bikes: which model is right for you?

The Defy Advanced is a classy disc-equipped endurance bike that can be ridden and raced over the harshest surfaces, which is why we crowned it the best endurance bike in the Cycling Weekly Bike of the Year awards.


Giant Defy Advanced Pro 2 head tube

The tall head tube gives a relaxed position

Made in Giant’s composite factory, the frame uses the company’s own advanced-grade composite- which includes high-performance T-700 raw carbon fibre. Giant says the frame is designed to achieve the right balance between saving weight and stiffness, whilst still providing a compliant ride.

>>> How to improve your endurance and ride further

As with most endurance bikes the Giant Defy Advanced Pro 2 has a fairly relaxed geometry. However, to further improve comfort on long rides the Defy uses Giant’s proprietary D-Fuse composite seatpost, which does a good job of absorbing vibrations from the road.

To improve front-end precision and provide enhanced handling, the full composite fork is married with a huge head tube that is no less than 19cm long.


Giant Defy Advanced Pro 2 shimano ultegra chainset

For a bike costing £2,300 the Giant Defy Advanced Pro 2 has some impressive components. The Shimano Ultegra front and rear mech, cassette and crankset, all performed reliably- I can’t recall a poor shift.

Disc brakes are making waves in the endurance bike world and the Defy continues this trend. It comes with Shimano’s impressive RS785 hydraulic disc brakes, which are combined with Giant’s own SL Disc wheels.

An interesting feature that may appeal to some is the chainstay integrated, but removable, wireless data transmitter. The ‘RideSense’ unit sends wheel speed and cadence data directly to any ANT+ compatible computer.


Giant Defy Advanced Pro 2 shimano hydraulic disc brake rotors

Shimano hydraulic discs are hard to fault

When riding the Defy you quickly appreciate that although it is built for long days in the saddle, the light and stiff frame provides a ride with far more zip than you might expect from a bike weighing 8.44kg.

The long wheelbase, relaxed geometry and the proprietary D-shaped seatpost do a good job of absorbing road vibrations.

giant defy advanced pro 2 seatpost

The D-Fuse seatpost does a decent job of absorbing road vibrations

The carbon frame has a compact design. The sloping top tube reduces the size of the front and rear triangles to create a lighter and stiffer bike. This, when married with the lighter rims of disc specific wheels, allows you to accelerate quickly, be it out of corners or sprinting for signs.

>>> How to improve your cornering and descending

The Defy’s consistent handling married with the impressive Shimano disc brakes meant I could descend the technical Honister Pass with confidence. Likewise. with a compact 50/34t chainset and an 11-28t cassette choosing the best gear for ascending or descending is easy. The only criticism is that although the D-shaped seatpost dampens road buzz, there are more comfortable endurance bikes on the market.


giant defy advanced pro 2

The Giant Advanced Pro 2 is an endurance bike with a performance edge

Buy now: Giant Defy Advanced Pro 2 2017 model at Tredz for £2,499

The mid-range sportive market is very competitive. Nevertheless, the Giant Defy Advanced Pro 2 stands out from the crowd thanks to its quality frame, top end componentry and the use of innovative technology – you get a lot of bike for a competitive price.


The Giant Defy Advanced Pro 2 hits the nail on the head when it comes to endurance bikes. It's comfortable, but not to the point where it isn't fun to ride, and there's always a bit of zip there for when it's time to put the hammer down.


Frame: Giant Defy Advanced-Grade Composite
Fork: Giant Defy Advanced-Grade Composite, OverDrive 2 Steerer
Shifters: Shimano R685
Front Derailleur: Shimano Ultegra
Rear Derailleur: Shimano Ultegra
Brake Calipers: Shimano RS785 hydraulic disc
Brake Rotors: 140mm
Chainset: Shimano Ultegra, 50/34t
Cassette: Shimano Ultegra, 11-28t
Chain: KMC X11SL
Wheels: Giant SL 1 Disc WheelSystem
Tyres: Giant P-SL1 front/rear specific, 25mm
Handlebars: Giant Contact SL
Stem: Giant Contact SL
Seatpost: Giant D-Fuse SL Composite
Saddle: Giant Contact SL Neutral
Sizes Available: S, M, ML (tested), L, XL
Colours Available: Metallic Blue/Black/Silver
Weight: 8.44kg

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