The 2026 Giant Defy Advanced 1 is engineered for endurance riders who demand comfort without sacrificing performance. Built with an Advanced-Grade Composite frame and fork, this endurance road bike delivers lightweight efficiency, precise handling, and stability for long days in the saddle.
The Defy features fully integrated cable routing and Giant’s innovative D-Fuse technology in the handlebar and seatpost, which work together to absorb road vibrations and reduce rider fatigue. The Shimano 105 Di2 electronic groupset ensures fast, smooth, and precise shifting, while Shimano hydraulic disc brakes provide confident stopping power in all conditions.
Equipped with the Giant P-R2 Disc wheelset and tubeless Gavia Fondo 1 32c tires, the Defy Advanced 1 offers all-day comfort, reduced rolling resistance, and improved puncture protection—perfect for tackling both smooth tarmac and rougher backroads.
Key Features
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Frame & Fork – Advanced-Grade Composite with OverDrive steerer and internal cable routing for lightweight stiffness and clean aesthetics.
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Compliance & Comfort – Giant D-Fuse handlebar and seatpost absorb shocks and vibrations for endurance comfort.
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Drivetrain – Shimano 105 Di2 12-speed electronic shifting for reliable, precise performance.
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Braking – Shimano 105 hydraulic disc brakes with 160mm rotors for powerful, consistent control.
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Wheelset & Tires – Giant P-R2 Disc alloy wheels with Giant Gavia Fondo 1 tubeless 32c tires for smoother, more efficient rolling.
The 2026 Defy Advanced 1 is the ideal road bike for endurance enthusiasts—combining cutting-edge carbon engineering, endurance geometry, and electronic shifting to keep you faster, fresher, and more confident on every ride.
| Frame |
Advanced-Grade Composite, 12x142mm thru-axle, disc |
| Fork |
Advanced-Grade Composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc |
| Shock |
N/A |
| 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 |
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| 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 |
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| 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 |
