Giant 2025 Defy Advanced 1 Road Bike

Expect More From Your Bike

With effortless efficiency and quiet compliance, this lightweight endurance 2025 Giant Defy Advanced 1 helps you ride stronger and longer. The composite frame and purpose-built components smooth out rough roads and minimize fatigue.

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.

Features:

• • 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
  • 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, 11×36
  • Chain: KMC X12L-1
  • Crankset: Shimano FC-RS520, 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, 40mm max tire size