Giant Defy Advanced Pro 0 2026 - Road Bike







The Defy Advanced Pro 0 blends efficiency with comfort for modern endurance riding. A lightweight composite frameset, tuned compliance and stable handling help reduce fatigue, while electronic shifting and carbon wheels keep the ride precise and composed.
Key Features:
- Frame: Advanced-Grade Composite frame with endurance geometry and disc brake design
- Fork: Advanced SL-Grade Composite fork with full-composite OverDrive Aero steerer
- Drivetrain: Shimano Ultegra Di2 12-speed electronic drivetrain
- Brakes: Shimano Ultegra Di2 hydraulic disc brakes with 160mm rotors
- Wheels: Giant SLR 0 40 carbon wheels with CADEX Classics 32c tubeless tyres
- Comfort: D-Fuse seatpost and handlebar to absorb road vibration
- Standout feature: Integrated Giant Power Pro power meter as standard
- Finance: Available with 0% APR finance
Built around a “less is more” approach, the Defy Advanced Pro 0 focuses on what matters most for endurance riding: efficiency, comfort and control. The Advanced-Grade Composite frame is one of the lightest in its category, delivering a responsive feel on climbs while remaining calm and stable over long distances.
Engineered compliance comes from the frame, fork and D-Fuse components working together to smooth out rough roads. The D-Fuse seatpost and Contact SLR D-Fuse handlebar flex slightly under load, helping to reduce vibration and rider fatigue without dulling the bike’s handling. The fork’s full-composite steerer adds front-end precision while maintaining comfort on long descents.
Shimano Ultegra Di2 brings fast, consistent electronic shifting across a wide 12-speed gear range, well suited to rolling terrain and long climbs. A factory-fitted Giant Power Pro power meter makes it easy to pace efforts and track progress on training rides or events.
Giant’s SLR 0 40 carbon wheels feature a wide, hookless rim profile optimised for modern high-volume tubeless tyres. Paired with 32c CADEX Classics tyres, they deliver predictable handling, good comfort and confidence in crosswinds. For riders who want to go far, stay fresh and ride with control all day, the Defy Advanced Pro 0 is built to support every mile.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Advanced-Grade Composite, 12x142mm thru-axle, disc |
| Fork | Advanced SL-Grade Composite, Full-Composite OverDrive Aero Steerer, 12x100mm thru-axle, Disc |
| Stem | Giant Contact SL AeroLight XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm |
| Bars | Giant Contact SLR D-Fuse XS:404/380mm, S:404/380mm, M:424/400mm, M/L:424/400mm, L:444/420mm, XL:444/420mm |
| Front Brake | Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]160mm |
| Rear Brake | Shimano Ultegra Di2 hydraulic, Shimano RT-CL800 rotors [F]160mm, [R]160mm |
| Brake Lever | Shimano Ultegra Di2 |
| Front Mech | Shimano Ultegra Di2 FD-R8150 |
| Rear Mech | Shimano Ultegra Di2 RD-R8150 |
| Shifters | Shimano Ultegra Di2 ST-R8170 |
| Speed | 24 |
| Rims | Giant SLR 0 40 Carbon Disc WheelSystem |
| Front Hub | [F] Giant Low Friction Hub, CenterLock, 12mm thru-axle [R] Giant Low Friction Hub, 40t ratchet driver, CenterLock, 12mm thru-axle |
| Rear Hub | [F] Giant Low Friction Hub, CenterLock, 12mm thru-axle [R] Giant Low Friction Hub, 40t ratchet driver, CenterLock, 12mm thru-axle |
| Spokes | Aero Carbon |
| Front Tyre | CADEX Classics, tubeless, 700x32c (33.5mm), folding |
| Rear Tyre | CADEX Classics, tubeless, 700x32c (33.5mm), folding |
| Seat Post | Giant D-Fuse SLR, composite, -5/+15mm offset |
| Saddle | Giant Fleet SL |
| Chainset | Shimano Ultegra, 34/50 with Giant Power Pro power meter XS:165mm, S:165mm, M:170mm, M/L:170mm, L:172.5mm, XL:172.5mm |
| Bottom Bracket | Shimano, press fit |
| Chain | Shimano Ultegra |
| Cassette | Shimano Ultegra, 12-speed, 11x34 |
![]()
Giant Defy Size Chart
| Size | Height cm | Height Feet / Inches |
|---|---|---|
| S | 165 – 175 | 5'5" – 5'9" |
| M | 171 – 181 | 5'7.5" – 5'11.5" |
| ML | 177 – 187 | 5'9.5" – 6'1.5" |
| L | 183 – 193 | 6'0" – 6'4" |
| XL | 189 – 199 | 6'2.5" – 6'6.5" |
What size frame do I need if I am between sizes? - read here
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.


Giant Defy Advanced Pro 0 2026 - Road Bike
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
We understand that the Cycle to Work process can be a little slower than we would all like - so to help you pick the perfect ride, we're now offering FREE Cycle to Work Reservations on any in stock bike (T&C's apply). Simply speak to a member of our Online Bike Experts Team via Live Chat to discuss your reservation. Find out more here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
We offer a fast, high-quality delivery service with flexible options to suit your schedule - including free delivery* over £50, next day delivery, Click & Collect, and now 24/7 InPost locker delivery for qualifying orders. Learn more about InPost
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 90 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.