Giant Defy Advanced SL 1 2025 - Moonstone

Go long. Go fast. Superlight and silky smooth, the flagship series of the new Defy range is back to reclaim its title as the pinnacle of endurance road. It’s the perfect choice for the sportive or gran fondo that’s circled on your calendar.Key Performance FactorsFunctional 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 SL-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

A 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.

Sizes
XS, S, M, M/L, L, XL
Colours
Moonstone
Frame
Advanced SL-Grade Composite, 12x142mm thru-axle, integrated seatpost, disc
Fork
Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
Shock
N/A
Handlebar
Giant Contact SLR 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 SLR AeroLight XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm
Seatpost
Giant D-Fuse SLR, composite, -5/+15mm offset
Saddle
Giant Fleet SLR
Pedals
N/A
Shifters
SRAM Force AXS
Front Derailleur
SRAM Force AXS
Rear Derailleur
SRAM Force AXS
Brakes
SRAM Force AXS hydraulic, SRAM CenterLine XR rotors [F]160mm, [R]160mm
Brake Levers
SRAM Force AXS hydraulic
Cassette
SRAM Force, 12-speed, 10x36
Chain
SRAM Force D1
Crankset
SRAM Force D2 DUB, 33/46 with power meter XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mm
Bottom Bracket
SRAM DUB, 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
Tires
CADEX Classics, tubeless, 700x32c (33.5mm), folding
Extras
Computer mount, water bottle cages, tubeless prepared, 38mm max tyre size