Giant Defy Advanced 1 Carbon Road Bike 2025

The 2025 Giant Defy Advanced 1 Carbon Road Bike is built for riders who demand speed, efficiency, and all-day comfort without unnecessary complications. Whether tackling long-distance endurance rides, rough country roads, or weekend club runs, it delivers the perfect balance of lightweight agility and road-smoothing compliance.

An Advanced-Grade Composite frame and fork form the heart of the bike, offering impressive stiffness without excess weight. The innovative D-Fuse Technology in the seatpost and handlebars absorbs road vibrations, reducing fatigue over extended miles. A new Contact D-Fuse handlebar with ergonomic shaping and an 8-degree flare enhances control, making it easier to maintain a steady grip on long rides.

Confidence comes standard with wide alloy rims, optimised for high-volume tubeless tyres up to 38mm. From smooth tarmac to cobbled lanes, the setup provides stability and predictable handling. The OverDrive Aero steerer tube keeps front-end stiffness high while integrating cables for a cleaner, more aerodynamic profile.

Inspired by professional racing geometry, the Compact Road Design ensures a responsive yet comfortable ride, catering to cyclists looking for both speed and endurance. Whether pushing limits on solo challenges or settling into a rhythm with the peloton, the 2025 Defy Advanced 1 is the ideal companion for those who refuse to compromise on performance or comfort.

Key Features:

- Advanced-Grade Composite Carbon Frame
- Advanced-Grade Composite Carbon Fork
- Shimano 105 Di2 Groupset Components
- Giant P-R2 Alloy Disc Rims
- Giant Gavia Fondo 1 TR 700x32c Tyres

Benefits:

- Lightweight Efficiency The advanced composite frame offers a high stiffness-to-weight ratio, making climbs feel easier and accelerations more responsive.
- All-Day Comfort D-Fuse seatpost and handlebar technology absorb road vibrations, reducing fatigue on long-distance rides.
- Enhanced Control The ergonomic Contact D-Fuse handlebar and stable geometry provide confident handling, even on rough or uneven surfaces.
- Versatile Tyre Clearance Wide alloy rims support tubeless tyres up to 38mm, offering better grip and comfort across varied road conditions.
- Aerodynamic Integration OverDrive Aero technology streamlines cable routing while maintaining a stiff and responsive front end for efficient power transfer.

Frame: 

Advanced-Grade Composite, 12x142mm thru-axle, disc  

Fork: 

Advanced-Grade Composite, full-composite 
OverDrive steerer, 12x100mm thru-axle, disc  

Handlebar: 

Giant Contact SL D-Fuse XS:40/42cm, S:40/42cm, M:42/44cm, M/L:42/44cm, L:44/46cm, 
XL:44/46cm  

Grips: 

Stratus Lite 3.0  

Stem: 

Giant Contact AeroLight XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm 
 
Seatpost: 

Giant D-Fuse, composite, 14mm offset  

Saddle: 

Giant Approach  

Pedals: 

N/A  

Shifters: 

Shimano 105 Di2  

Front Derailleur: 

Shimano 105 Di2  

Rear Derailleur: 

Shimano 105 Di2  

Brakes: 

Shimano 105 Di2 hydraulic, Giant MPH rotors [F]160mm, [R]160mm  

Brake Levers: 

Shimano 105 Di2
  
Cassette: 

Shimano 105, 12-speed, 11x36  

Chain: 

KMC X12L-1  

Crankset: 

Shimano 105, 34/50 XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mm  

Bottom Bracket: 

Shimano, press fit  

Rims: 

Giant P-R2 Disc wheelset, alloy, [F]25mm, [R]25mm  

Hubs: 

Giant alloy, 12mm thru-axle  

Spokes: 

Sapim  

Tires: 

Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding  

Extras: 

fender mount, water bottle cages, tubeless prepared, 38mm max tire size

Door to door delivery:

Delivery time is determined in business days. This is usually 3 to 5 business days after we have received your order. Special-order items may take a little longer which will be communicated to you. The delivery address is YOUR preferred daytime destination from Monday to Friday during standard business hours (08h00 – 17h00). Please ensure someone is at the selected address to sign for the delivery.

Click and Collect:

 Delivery time is determined in business days. This is usually 3 to 5 business days after we have received your order. Your collection point will be the store you chose. Please wait for the store to contact you to inform you that your order is ready for collection.