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Defy Advanced 1 (2025) | Endurance bike

3,649.00

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The Giant Defy Advanced 1 2025 Endurance Bike is designed for riders who seek all-day comfort, smooth performance, and advanced technology. Built with an Advanced-Grade Composite frame, this lightweight endurance machine ensures excellent power transfer while maintaining compliance for a smooth and stable ride. Its endurance-focused geometry provides superior stability and control, making it ideal for long-distance rides over varying road conditions.

Equipped with Shimano 105 Di2 electronic shifting, this bike delivers precise, fast, and effortless gear changes with the push of a button. The fully integrated cockpit and hidden cable routing enhance aerodynamics while maintaining a sleek and modern aesthetic. Designed to absorb road vibrations, the frame and components work together to minimize fatigue, helping riders push further with ease.

A Giant P-R2 Disc system ensures excellent rolling efficiency and durability, providing a smooth and fast ride on various surfaces. These high-performance wheels, combined with hydraulic disc brakes, offer powerful and consistent stopping power, ensuring full control in all weather conditions and on unpredictable road surfaces.

The integrated D-Fuse seatpost enhances ride comfort by dampening road shocks and reducing vibrations, helping riders stay fresh over extended distances. Whether climbing steep hills, descending technical sections, or maintaining steady speeds on flat roads, this endurance bike is built to perform in any situation.

The Giant Defy Advanced 1 2025 Endurance Bike is the perfect blend of endurance-focused design, cutting-edge electronic shifting, and top-tier ride quality. Whether training, exploring new routes, or pushing personal limits, this bike delivers the speed, precision, and comfort needed to tackle any long-distance ride with confidence and control.

Additional information

Colour

Size

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Specifications

With effortless efficiency and quiet compliance, this lightweight endurance road machine helps you ride stronger and longer. The composite frame and purpose-built components smooth out rough roads and minimize fatigue.

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 minimizes 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, alloy rims are optimized for high-volume tubeless tires (up to 38mm), providing predictable handling and stability from asphalt to cobbles.

Sizes S, M, M/L, L, XL
Colours Gloss Frost Silver/Cordovan
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
Grips Stratus Lite 3.0
Stem Giant Contact AeroLight
Seatpost Giant D-Fuse, composite, 14mm offset
Saddle Giant Approach
Pedals PEDALS NOT SUPPLIED
Shifters Shimano 105 Di2 2×12
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, 11×36
Chain KMC X12L-1
Crankset Shimano 105, 34/50
Bottom Bracket Shimano, press fit
Rims Giant P-R2 Disc wheelset, alloy, [F]25mm, [R]25mm
Hubs Giant alloy, 12mm thru-axle
Spokes Sapim
Tyres Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding
Extras Fender mount, water bottle cages, factory tubeless set up, 40mm max tyre size

Geometry

S M ML L XL
A SEAT TUBE LENGTH 445 480 515 535 565
B SEAT TUBE ANGLE 74 73.5 73 73 73
C TOP TUBE LENGTH 530 545 560 575 595
D HEAD TUBE LENGTH 140 150 175 195 215
E HEAD TUBE ANGLE 71.8 72.5 72.5 72.5 72.5
F FORK RAKE 50 50 50 50 50
G TRAIL 63.4 58.6 58.6 58.6 58.6
H WHEEL BASE 994 998 1010 1025 1040
I CHAIN STAY LENGTH 420 420 420 420 420
J BOTTOM BRACKET DROP 75 75 70 70 70
K STACK 541 558 577 596 615
L REACH 375 380 384 393 402
M STAND OVER HEIGHT 733 762 796 814 841
N HANDLERBAR WIDTH 400 420 420 440 440
O STEM LENGTH 90 100 100 110 110
P CRANK LENGTH DEC 170 172.5 172.5 175 175
Q WHEEL SIZE ALT 700C 700C 700C 700C 700C

Technology and Features

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- Team Cycle Centre