Giant 2025 Defy Advanced 1

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
  XS, S, M, M/L, L, XL
• Colours
  Frost Silver/Cordovan, Solar Flare
• 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
• Weight
  The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.