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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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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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.Why Choose a Giant Defy?
Who Is the Giant Defy For?
Popular Giant Defy Models
Giant Defy Advanced SL
Giant Defy Advanced Pro
Giant Defy Advanced
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
Cons
Is the Giant Defy Worth Buying?
Frequently Asked Questions
Is the Giant Defy suitable for beginners?
Can the Giant Defy be used for racing?
Can you ride a Giant Defy on gravel?
What size tyres can a Giant Defy take?