Giant Defy, Built to Make Long Rides Feel Better





We've found 112 deals, with prices starting from as little as £159.20 for a Giant Defy Slr D Fuse Carbon Seatpost.

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£1649.00 was £1999.00 save 17.51%

Giant Defy Advanced 3 2026 - Road Bike

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£1849.00 was £2299.00 save 19.57%

Giant Defy Advanced 2 2026 - Road Bike

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£2299.00 was £2799.00 save 17.86%

Giant Defy Advanced 1 2026 - Road Bike

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£2699.00 was £3299.00 save 18.19%

Giant Defy Advanced 0 2026 - Road Bike

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£3199.00 was £4199.00 save 23.82%

Giant Defy Advanced Pro 1 2026 - Road Bike

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£3199.00

Giant Defy Advanced Pro 2 2026 - Road Bike

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£3499.00 was £4199.00 save 16.67%

Giant Defy Advanced Pro 1 - Nearly New – L

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£3999.00

Giant Defy Advanced-Ui2 2027 - Road Bike

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£5499.00

Giant Defy Advanced E+ Elite AR 2026 - Electric Road Bike

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£5999.00

Giant Defy Advanced E+ Elite 2 2026 - Electric Road Bike

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£7499.00

Giant Defy Advanced E+ Elite 1 2026 - Electric Road Bike

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£8999.00

Giant Defy Advanced E+ Elite 0 2026 - Electric Road Bike

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£9499.00

Giant Defy Advanced SL 0 2026 - Road Bike

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£159.20 was £199.00 save 20.00%

Giant Defy Slr D Fuse Carbon Seatpost

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£1999.00

Giant Defy Advanced 3 Carbon Road Bike 2026

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£1999.00

Giant Defy Advanced 3 Carbon Road Bike 2026 Large

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£1999.00

Giant Defy Advanced 3 Carbon Road Bike 2026 Medium

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£1999.00

Giant Defy Advanced 3 Carbon Road Bike 2026 Medium/Large

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£1999.00

Giant Defy Advanced 3 Carbon Road Bike 2026 Small

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£1999.00

Giant Defy Advanced 3 Carbon Road Bike 2026 X-Large

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£1999.00

Giant Defy Advanced Pro Carbon Road Bike Frameset 2026

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£1999.00

Giant Defy Advanced Pro Carbon Road Bike Frameset 2026 Large

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£1999.00

Giant Defy Advanced Pro Carbon Road Bike Frameset 2026 Medium

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£1999.00

Giant Defy Advanced Pro Carbon Road Bike Frameset 2026 Medium/Large

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The Giant Defy endurance road bike is designed for the days when you want to keep riding beyond your usual turning point. Now in its fifth generation, the Defy combines a light carbon frame, confident handling and carefully engineered compliance to help smooth out rough British roads. Whether you are training for a sportive, tackling an ambitious gran fondo or simply planning an all-day ride, the Defy aims to help you travel farther without sacrificing speed.

On this Velostrive page, you can compare offers on the Giant Defy Advanced, Giant Defy Advanced Pro and range-topping Giant Defy Advanced SL from different online cycling retailers. Prices and specifications can vary between model years, so check each offer carefully before choosing your bike.

Why Choose a Giant Defy?

Many cyclists love the speed of a road bike but do not want an aggressive racing position for every journey. The Defy provides a more relaxed endurance-focused fit while remaining responsive enough for quick club rides and challenging climbs.

Its carbon frame is designed to balance lateral stiffness with controlled compliance. In simple terms, the bike should respond efficiently when you press on the pedals while helping to reduce the vibrations that can make long rides tiring. This is particularly useful on coarse tarmac, patched lanes and imperfect rural roads.

The Defy can also accommodate tyres up to 38mm on compatible configurations. Wider tyres can be run at lower pressures, improving comfort, grip and confidence. This makes the bike more versatile than a traditional narrow-tyred race machine, although it remains primarily a road bike rather than a dedicated gravel bike.

Who Is the Giant Defy For?

The Defy is ideal for cyclists who prioritise long-distance comfort but still want a bike that feels light, efficient and exciting. It should appeal to sportive riders, weekend cyclists, endurance enthusiasts and anyone moving from an aggressive race bike to a more forgiving riding position.

It could also suit riders buying their first premium carbon road bike. The approachable handling and greater tyre clearance provide reassurance, while the different Defy levels allow buyers to choose between value, performance and ultimate low weight.

Popular Giant Defy Models

Giant Defy Advanced SL

The Giant Defy Advanced SL is the flagship option for riders who want the lightest and most advanced Defy. Its superlight composite frame weighs a claimed 785g and provides greater lateral stiffness for more efficient acceleration and climbing.

The D-Fuse SLR seatpost is engineered to deliver 40 per cent more compliance, while the Contact SLR D-Fuse handlebar uses D-shaped tubing to help absorb shocks and vibration. Its ergonomic shape and 8-degree flare provide a comfortable hand position and additional control.

Other highlights include integrated cable routing through the Contact SLR AeroLight stem and a CADEX 36 WheelSystem. The 36mm-deep hookless carbon rims combine responsive handling with stability in crosswinds, while their 22.4mm internal width is optimised for higher-volume tubeless tyres.

Giant Defy Advanced Pro

The Giant Defy Advanced Pro occupies the performance-focused middle ground. It is intended for serious endurance cyclists who appreciate lighter components and upgraded equipment but may not need the flagship SL frame and its premium price.

This is likely to be the sweet spot for enthusiastic sportive riders. It retains the Defy’s smooth character and long-distance geometry while offering the performance needed for steep climbs, fast group rides and demanding days in the saddle. Exact groupsets and wheels differ by version and model year, making deal comparison particularly important.

Giant Defy Advanced

The Giant Defy Advanced brings the important Defy qualities to a more accessible price point. It uses an Advanced-grade composite frame and full-composite fork, providing a strong foundation that can be upgraded later if required.

The Defy Advanced 2 features Shimano 105 shifting, an FC-RS520 50/34 crankset and Giant P-R2 alloy disc wheels. The Defy Advanced 3 uses a Shimano Tiagra drivetrain with a compact 50/34 crankset and Giant S-R2 alloy wheels. Both are sensible choices for hilly British routes, recreational riding and first sportives.

Giant Defy Model Comparison

Model Position in Range Key Features Best For
Giant Defy Advanced SL Flagship 785g claimed frame, D-Fuse SLR components, integrated cables and CADEX 36 carbon wheels Maximum performance, low weight and premium endurance riding
Giant Defy Advanced Pro Performance Upgraded equipment with endurance geometry and smooth-riding carbon construction Sportives, fast club rides and demanding long-distance events
Giant Defy Advanced 2 Mid-range Advanced-grade carbon frame, Shimano 105 and Giant P-R2 alloy wheels Regular riders wanting a capable and upgradeable carbon bike
Giant Defy Advanced 3 Entry to the carbon range Advanced-grade carbon frame, Shimano Tiagra and Giant S-R2 alloy wheels First carbon road bike, leisure rides and entry-level sportives

Giant Defy Pros and Cons

Pros

  • Comfortable endurance geometry for longer rides
  • Light and efficient carbon frame options
  • D-Fuse components help reduce road vibration
  • Clearance for tyres up to 38mm on compatible setups
  • Stable handling on rough and unpredictable roads
  • Several price and specification levels available

Cons

  • Less aggressive than a dedicated racing bike
  • Advanced Pro and SL models can be expensive
  • Hookless wheels require compatible tyres and pressures
  • Exact specifications can differ between retailers and model years

Is the Giant Defy Worth Buying?

If your best rides are measured in hours rather than laps, the Giant Defy deserves a place on your shortlist. It combines useful comfort with genuine road-bike speed, allowing it to climb, descend and cover long distances without feeling dull.

The Giant Defy Advanced 3 offers an accessible route into carbon endurance cycling, while the Advanced 2 adds the appeal of Shimano 105. The Giant Defy Advanced Pro is the natural choice for committed enthusiasts, and the Giant Defy Advanced SL delivers the lightest, most sophisticated package.

Use Velostrive to compare current Giant Defy deals from participating UK retailers. Look beyond the headline discount and compare the groupset, wheels, frame size, model year and delivery terms to find the best overall value.

Frequently Asked Questions

Is the Giant Defy suitable for beginners?

Yes. Its stable handling, comfortable position and range of specifications make it approachable for newer riders, although a professional bike fit or sizing check is still recommended.

Can the Giant Defy be used for racing?

It can be used for amateur races and fast events, but its geometry prioritises endurance comfort. Riders focused entirely on competition may prefer Giant’s more aggressive TCR or Propel platforms.

Can you ride a Giant Defy on gravel?

Its generous tyre clearance can handle light gravel and well-maintained tracks with suitable tyres. For frequent riding on loose or technical surfaces, a dedicated gravel bike would be more appropriate.

What size tyres can a Giant Defy take?

The fifth-generation Defy is designed to accept tyres up to 38mm on compatible configurations. Always confirm clearance, wheel compatibility and Giant’s guidance for the particular model before fitting new tyres.