Endurance road bike on testGiant Defy Advanced 1

Endurance road bike on test: Giant Defy Advanced 1Photo: Matthias Borchers

In this article, we use so-called affiliate links. With every purchase through these links, we receive a commission from the merchant. All relevant referral links are marked with . Learn more.

In no other category are there such different concepts as in the marathon road bike. We tested the Giant Defy Advanced 1.

Giant Defy Advanced 1: The concept

The Defy is "made for endurance rides on all types of roads", says the world's largest bicycle manufacturer about the bike. It quickly becomes clear that the Giant should be seen as an uncomplicated all-rounder that wants to be at the forefront in many categories - above all riding comfort.

The riding experience on the Giant Defy Advanced 1

This impression is confirmed by the wheel Model year 2023 with Shimano's new 105 Di2 after just a few turns of the cranks. The very long head tube puts you in an upright, yet balanced riding position thanks to the long stem. The rear suspension works perfectly thanks to the carbon seat post with a D-shaped cross-section and 32 millimetre wide tubeless tyres. The Giant also feels at home on easy terrain. If you often ride on unpaved roads, you can fit tyres up to 35 millimetres wide. The handling is a harmonious blend of directional stability and agility. However, as with almost all bikes in this comparison, the relatively high overall weight detracts from the riding pleasure.

Due to the relatively long stem, you sit relatively stretched out on the Giant despite the long head tubePhoto: Matthias BorchersDue to the relatively long stem, you sit relatively stretched out on the Giant despite the long head tube

That's what you get for your money

The revised Defy now shifts with Shimano's electronic 105 instead of the mechanical Ultegra and has become 400 euros more expensive. Unfortunately, the new 105 is not installed correctly; a heavy compact crank and no-name brake discs, which do not exploit the potential of the brakes, spoil the picture, especially in view of the higher price. The Defy has eyelets for mudguards.


How do you like this article?

The target group for the endurance bike

The Defy is the "people's bike" among the marathon models; a no-nonsense, unpretentious companion for many occasions, whose wide range of gears with 1:1 transmission is suitable for racing, rolling and climbing.

The Giant Defy Advanced 1

The Giant Defy Advanced 1Photo: Matthias BorchersThe Giant Defy Advanced 1
  • Frame/fork/steering bearing weight* 1184/477/58 grammes
  • Frame sizes** S, M, ML, L, XL
  • Seat/top tube/head tube 515/560/186 millimetres
  • Stack/Reach/STR*** 588/377 millimetres/1.56
  • Wheelbase/caster 1010/53 millimetres

Giant Defy Advanced 1 - Equipment

  • Drive/Circuit Shimano 105 Di2 (2x12; 50/34, 11-34 t.)
  • Brakes Shimano 105/Giant MPH (160/160 mm)
  • Wheels/tyres (weights)**** Giant PR2 Disc/Giant Gavia Fondo 1 32 mm (f./h. 1,485/2,056 g)
Strengths and weaknesses of the Giant Defy Advanced 1Photo: TOURStrengths and weaknesses of the Giant Defy Advanced 1

Strengthsbalanced driving behaviour, good comfort
Weaknessesrelatively heavy, simple brake discs

The test results at a glance

In addition to the Giant Defy Advanced 1, we also tested the Canyon Endurace CF 7 All-Road, the Cannondale Synapse Carbon 2 RL, the Specialized Roubaix Comp, the Cube Agree C:62 and the Trek Domane SLR 7 in our endurance road bike test.

The evaluation at a glance: In the end, the Giant achieves a TOUR grade of 2.2The evaluation at a glance: In the end, the Giant achieves a TOUR grade of 2.2

*Weighed weights.
**Manufacturer's specification, test size in bold.
***Stack/reach projected vertical/horizontal measurement from the centre of the bottom bracket to the top of the head tube; STR (stack to reach): 1.36 means a very stretched, 1.60 a very upright riding position.
****Wheel weights including tyres, cassette, quick release/ thru axles and brake discs if applicable.

Julian Schultz is a qualified sports scientist and trained sports journalist and is responsible for testing complete bikes. From competition bikes to gravel bikes, he tests the latest models and keeps his eyes open for the latest trends. This includes the Tour de France, where the test editor has been on the lookout for technical details and stories from the paddock since 2022.

Most read in category Racing bikes