ZoomGiant
Defy Advanced Pro 0 Road Bike - Interstellar (2025)
- Spread the cost over 6, 12, 24 or 36 months
- 0% APR Finance available on 6, 12, 24 months for orders over £250
- 0% APR Finance available on 36 months for orders over £1500
- Pay as little as 10% deposit
Here’s to long rides. Climb higher mountains, skip the shortcuts. This buttery smooth endurance road bike helps you do more of what you love.
Key Performance Factors
Functional simplicity
Free of cumbersome gimmickry, the frameset is one of the lightest in its category. With a perfect balance of high-performance reactivity and all-day comfort, it offers a “less is more” experience for modern endurance road riding.
Engineered compliance
Advanced-grade composite frame and fork are specifically engineered for endurance road riding, delivering a smooth and efficient ride quality that minimises fatigue on long rides. The new D-Fuse components work together to further absorb road shocks and vibrations.
Total control
New Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for comfort and control on all-day rides. Wide, hookless carbon rims (22.4mm inner width) are optimised for high-volume tubeless tyres (up to 38mm), and a 36mm rim depth offers stable, predictable handling in crosswinds.
Specification:
Frame: Advanced-Grade Composite, 12x142mm thru-axle, disc
Fork: Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
Handlebar: Giant Contact SLR D-Fuse
Stem: Giant Contact SL AeroLight
Seatpost: Giant D-Fuse SLR, composite, -5/+15mm offset
Saddle: Giant Fleet SL
Pedals: Not supplied
Shifters: Shimano Ultegra Di2 ST-R8170 2x12
Front Derailleur: Shimano Ultegra Di2 FD-R8150
Rear Derailleur: Shimano Ultegra Di2 RD-R8150
Brakes: Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]160mm
Brake Levers: Shimano Ultegra Di2
Cassette: Shimano Ultegra, 12-speed, 11x34
Chain: Shimano Ultegra
Crankset: Shimano Ultegra, 34/50 with Giant Power Pro power meter
Bottom Bracket: Shimano, press fit
Rims: Giant SLR 1 36 Carbon Disc WheelSystem
Hubs: [F] Giant Low Friction Hub, CenterLock, 12mm thru-axle, [R] Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle
Spokes: Sapim
Tyres: CADEX Classics, tubeless, 700x32c (33.5mm), folding
Extras: Out front computer mount, fender mount, water bottle cages, factory tubeless set up, 40mm max tyre size
Max Tyre Clearance: 40mm
Here’s to long rides. Climb higher mountains, skip the shortcuts. This buttery smooth endurance road bike helps you do more of what you love.
Key Performance Factors
Functional simplicity
Free of cumbersome gimmickry, the frameset is one of the lightest in its category. With a perfect balance of high-performance reactivity and all-day comfort, it offers a “less is more” experience for modern endurance road riding.
Engineered compliance
Advanced-grade composite frame and fork are specifically engineered for endurance road riding, delivering a smooth and efficient ride quality that minimises fatigue on long rides. The new D-Fuse components work together to further absorb road shocks and vibrations.
Total control
New Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for comfort and control on all-day rides. Wide, hookless carbon rims (22.4mm inner width) are optimised for high-volume tubeless tyres (up to 38mm), and a 36mm rim depth offers stable, predictable handling in crosswinds.
Specification:
Frame: Advanced-Grade Composite, 12x142mm thru-axle, disc
Fork: Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
Handlebar: Giant Contact SLR D-Fuse
Stem: Giant Contact SL AeroLight
Seatpost: Giant D-Fuse SLR, composite, -5/+15mm offset
Saddle: Giant Fleet SL
Pedals: Not supplied
Shifters: Shimano Ultegra Di2 ST-R8170 2x12
Front Derailleur: Shimano Ultegra Di2 FD-R8150
Rear Derailleur: Shimano Ultegra Di2 RD-R8150
Brakes: Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]160mm
Brake Levers: Shimano Ultegra Di2
Cassette: Shimano Ultegra, 12-speed, 11x34
Chain: Shimano Ultegra
Crankset: Shimano Ultegra, 34/50 with Giant Power Pro power meter
Bottom Bracket: Shimano, press fit
Rims: Giant SLR 1 36 Carbon Disc WheelSystem
Hubs: [F] Giant Low Friction Hub, CenterLock, 12mm thru-axle, [R] Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle
Spokes: Sapim
Tyres: CADEX Classics, tubeless, 700x32c (33.5mm), folding
Extras: Out front computer mount, fender mount, water bottle cages, factory tubeless set up, 40mm max tyre size
Max Tyre Clearance: 40mm
