Giant Defy Advanced 0 (2026): an endurance carbon road bike combining an Advanced-grade Composite frameset with Shimano 105 Di2 2x12 electronic shifting, hydraulic disc brakes and carbon wheels for smooth, efficient all-day performance. Jump to: What • How • Why • FAQ WHAT is the Giant Defy Advanced 0? The Defy Advanced 0 (2026) is the flagship of the Defy range, built for endurance and efficiency. Its Advanced-grade Composite frame and full composite OverDrive fork are matched with a Shimano 105 Di2 2x12 groupset and hydraulic disc brakes for smooth power delivery and control. Rolling on Giant SLR 2 36 Carbon tubeless wheels with Gavia Fondo 1 700x32c tyres, it’s engineered to glide over rough tarmac with confidence and speed. Frame: Advanced-grade Composite, 12x142mm thru-axle, disc Fork: Advanced-grade Composite, full composite OverDrive steerer, 12x100mm thru-axle, disc Drivetrain: Shimano 105 Di2 2x12 with FC-R7100 50/34T chainset and CS-R7101-12 11-36 cassette Brakes: Shimano 105 BR-R7170 hydraulic disc with Giant MPH 160/140mm rotors Wheels: Giant SLR 2 36 Carbon, tubeless ready Tyres: Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding HOW does it ride? The Defy Advanced 0 is smooth, fast and impressively composed over distance. The carbon frame and fork balance stiffness and comfort, while the SLR 2 36 Carbon wheels deliver a lively, efficient ride feel. The 105 Di2 system ensures accurate, effortless gear shifts, and the D-Fuse bar and seatpost reduce road buzz, keeping fatigue low even on long rides. Lightweight speed — carbon wheels and frame deliver responsive acceleration Endurance comfort — D-Fuse seatpost and handlebar reduce vibration Electronic performance — 105 Di2 offers fast, consistent shifting WHY choose the Defy Advanced 0? As the top-tier model in the Defy Advanced range, this bike offers race-level precision with endurance geometry for long-distance comfort. It’s a perfect choice for riders who want lightweight efficiency, refined control and cutting-edge electronic shifting in one all-day package. Best for: Long-distance endurance, sportives, performance road riding Not for: Gravel or heavy load touring Standouts: 105 Di2 electronic, carbon wheels, smooth composite ride feel Sizing & Fit Find my size Pick your height band to see our usual recommendation for this model. 165–170 cm Usually S. Riders preferring more reach may size up to M. 171–176 cm S or M depending on reach/torso length. Most riders land on M. 177–181 cm M or L. M for agility, L for stability. 182–186 cm Usually L; long-leg/short-torso riders may prefer XL. 187–193 cm Usually XL; some may size down for a sportier reach. Over 193 cm Typically XXL. Contact us for fit tweaks or cockpit advice. Guidance only — reach/stack and flexibility matter. Ask us or book a bike fit. Available in multiple sizes. Colours vary by size. If you’re unsure, see our size guide or get personalised advice. Frequently Asked Questions FAQs about the Giant Defy Advanced 0 (2026) What drivetrain does it have? A complete Shimano 105 Di2 2x12 electronic groupset with 50/34T chainset and 11-36 cassette. Is it tubeless-ready? Yes — supplied tubeless prepared with Gavia Fondo 1 tyres and SLR 2 36 Carbon wheels. What brakes does it have? Shimano 105 BR-R7170 hydraulic discs with Giant MPH rotors (160/140mm). What’s the tyre clearance? The frame allows for up to 40mm tyres. What cockpit components are fitted? Giant Contact SL D-Fuse handlebar and D-Fuse composite seatpost (14mm offset). Need more info? Contact our team and we’ll be happy to help. More like this: Shop Road Bikes • Explore the Giant range Assembly & First Service Every bike is built and safety-checked by our Cytech-qualified mechanics. In-store purchases qualify for a first FREE health check after ~6 weeks; booking required. All Mail Order bikes come with FREE Multi-Tool / Pedal Spanner / Pedals. Delivery / Click & Collect Fast UK delivery or FREE Click & Collect from our stores. See Delivery Information for details. Finance & Cycle to Work Spread the cost with finance (subject to status & availability) or save with Cycle to Work. If you need any help with this, just ask our team for options. On occasion, without notice, manufacturers may change product design and/or specifications.
