Giant Defy Advanced 1 2025 - Road Bike
The Giant Defy Advanced 1 is built for endurance and comfort. Its lightweight Advanced-Grade Composite frame is designed to smooth out road vibrations, thanks to integrated D-Fuse technology in the seatpost and handlebar. This ensures reduced fatigue, even on long rides over rough terrain.
Key Features:
- Frame: Advanced-Grade Composite, designed for endurance geometry and all-day comfort.
- Fork: Advanced-Grade Composite, OverDrive steerer for precise and stable handling.
- Drivetrain: Shimano 105 Di2 24-speed, offering seamless and reliable electronic shifting.
- Brakes: Shimano 105 Di2 hydraulic disc brakes with 160mm Giant MPH rotors for consistent stopping power.
- Wheels: Giant P-R2 alloy wheelset, tubeless-ready, 25mm rim width for stability and performance.
- Tyres: Giant Gavia Fondo 1 tubeless, 700x32c, providing grip, comfort, and puncture protection.
- Other Features: D-Fuse seatpost and handlebar for improved compliance and vibration damping.
- Finance Options: Available with 0% APR finance for flexible and affordable payments.
The Shimano 105 Di2 electronic groupset offers crisp, reliable gear shifts, letting you focus on your ride. Paired with hydraulic disc brakes, the bike provides exceptional stopping power, giving you confidence on descents and in wet weather conditions.
Wide tubeless tyres and the robust P-R2 Disc wheelset ensure stability and control, while also reducing the risk of punctures. Whether you're taking on a weekend adventure or pushing through an all-day sportive, the Defy Advanced 1 offers the perfect combination of speed, comfort, and reliability.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Advanced-Grade Composite, 12x142mm thru-axle, disc |
| Fork | Advanced-Grade Composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc |
| Stem | Giant Contact Aerolight |
| Bars | Giant Contact SL D-Fuse |
| Front Brake | Shimano 105 Di2 hydraulic, Giant MPH rotors [F]160mm, [R]160mm |
| Rear Brake | Shimano 105 Di2 hydraulic, Giant MPH rotors [F]160mm, [R]160mm |
| Brake Lever | Shimano 105 DI2 |
| Front Mech | Shimano 105 Di2 |
| Rear Mech | Shimano 105 Di2 |
| Shifters | Shimano 105 Di2 2x12 |
| Speed | 24 |
| Rims | Giant P-R2 Disc wheelset, alloy, [F]25mm, [R]25mm |
| Front Hub | Giant alloy, 12mm thru-axle |
| Rear Hub | Giant alloy, 12mm thru-axle |
| Spokes | Sapim |
| Front Tyre | Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding |
| Rear Tyre | Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding |
| Seat Post | Giant D-Fuse, composite, 14mm offset |
| Saddle | Giant Approach |
| Chainset | Shimano 105, 34/50 |
| Bottom Bracket | Shimano, press fit |
| Chain | KMC X12L-1 |
| Cassette | Shimano 105, 12-speed, 11x36 |
See the table below to find the right size.
Road Bike Sizing
XXS (44)
4'8"
5'1"
XS (48)
5'1"
5'4"
S (51)
5'4"
5'7"
M (54)
5'7"
5'10"
L (56)
5'10"
6'0"
XL (58)
6'0"
6'3"
XXL (60)
6'3"
6'5"
XXXL (62)
6'5"
6'9"
Read our bike size guide for more information on sizing.
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Height |
Size |
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4’8” / 143cm |
44 (XXS) |
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4’9” / 145cm |
44 (XXS) |
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4’10” / 148cm |
44 (XXS) |
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4’11” / 150cm |
44 (XXS) |
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5’0” / 152cm |
44 (XXS) |
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5’1” / 155cm |
44 (XXS) |
48 (XS) |
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5’2” / 158cm |
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48 (XS) |
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5’3” / 160cm |
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48 (XS) |
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5’4” / 163cm |
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48 (XS) |
51 (S) |
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5’5” / 165cm |
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51 (S) |
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5’6” / 168cm |
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51 (S) |
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5’7” / 170cm |
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51 (S) |
54 (M) |
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5’8” / 173cm |
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54 (M) |
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5’9” / 175cm |
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54 (M) |
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5’10” / 178cm |
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54 (M) |
56 (L) |
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5’11” / 180cm |
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56 (L) |
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6’0” / 183cm |
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56 (L) |
58 (XL) |
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6’1” / 185cm |
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58 (XL) |
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6’2” / 188cm |
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58 (XL) |
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6’3” / 191cm |
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58 (XL) |
60 (XXL) |
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6’4” / 193cm |
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60 (XXL) |
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6’5” / 196cm |
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60 (XXL) |
62 (XXXL) |
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6’6” / 198cm |
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62 (XXXL) |
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6’7” / 201cm |
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62 (XXXL) |
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6’8” / 203cm |
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62 (XXXL) |
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6’9” / 205cm |
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62 (XXXL) |
Read our bike size guide for more information on sizing.
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Giant Defy Advanced 1 2025 - Road Bike
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