Giant Defy Advanced Pro 0 Bike
The Giant Defy Advanced Pro 0 delivers pro-level endurance speed without the flagship sticker.
This carbon endurance road bike is built for the serious rider who logs big weekend miles and wants performance that lasts. The Defy Advanced Pro 0 blends race-bred stiffness with all-day comfort, so a long foothill loop above the Valley stays smooth from the first climb to the last descent.
It's right for you if:
You ride long and hard but want comfort baked into the frame.
You want carbon wheels and electronic shifting without going full flagship.
You're stepping up from an alloy endurance bike.
You want one bike for fondos, group rides, and solo epics.
Why you'll love it:
The advanced-grade carbon frame is stiff where it counts and forgiving where it matters.
The D-Fuse composite seatpost and bar cut road vibration, so your hands and back stay fresh.
Electronic shifting delivers fast, precise gear changes with a light touch.
Carbon wheels accelerate quick and roll fast on open road.
Hydraulic disc brakes give sure, controlled stopping in any weather.
The tech you get: an Advanced-grade composite frame and full-composite fork, electronic Di2 shifting, carbon wheels, and hydraulic disc brakes.
Reserve Your Ride
(818) 818-6262 | No deposit required.
Every bike from Cycle World Bike is assembled by hand, inspected for safety, and ready to ride when you pick it up.
Brian, our lead technician, builds and tunes every bike that leaves the shop
Steve helps match the right frame size and riding position to your body
Come back anytime for adjustments, questions, or service
No guessing your size from a chart. No assembling it from a box in your garage.
Book a Fitting
Not sure which size or model is right for you? Call and schedule a fitting with Steve. He will walk you through frame sizing, riding position, and which bike matches how you ride. No commitment, no pressure. Just expert advice from someone who has been fitting riders for decades.
(818) 818-6262
Serving the San Fernando Valley since 1966. Lowest Price Guarantee on every bike we carry.
Highlights
Advanced-Grade Composite Frame
This endurance frame is tuned specifically for compliance, so it stays buttery smooth over rough roads. Built to help you do more of what you love, longer.
Shimano Ultegra Di2 Electronic Shifting
Twelve-speed electronic shifting fires accurate, effortless changes every time you tap the levers. Consistent performance that never fades on a five-hour ride.
D-Fuse Components
The D-Fuse handlebar and seatpost work as a system to absorb vibration before it reaches you. Less fatigue in your hands and lower back on all-day efforts.
SLR 1 36 Carbon Wheels with Hookless Rims
Wide hookless carbon rims with a 22.4mm inner width are built for high-volume tubeless tires up to 38mm. Lower pressure, better grip, and a smoother ride over anything the road throws at you.
Ultegra Hydraulic Disc Brakes
160mm rotors front and rear give you strong, predictable stopping in any weather. Brake with confidence descending out of the hills.
CADEX Classics Tubeless Tires
Fast-rolling 32c tubeless rubber cushions the ride and shrugs off small debris. Comfort and speed without the constant worry of flats.
Specifications
Frame | Advanced-Grade Composite, 12x142mm thru-axle, disc |
Fork | Advanced SL-Grade Composite, 12x100mm thru-axle, disc |
Shifters | Shimano Ultegra Di2 ST-R8170 |
Front Derailleur | Shimano Ultegra Di2 FD-R8150 |
Rear Derailleur | Shimano Ultegra Di2 RD-R8150 |
Crankset | Shimano Ultegra, 34/50 (XS/S:170mm, M/M-L:172.5mm, L/XL:175mm) |
Bottom Bracket | Shimano, press fit |
Cassette | Shimano Ultegra, 12-speed, 11x34 |
Chain | Shimano Ultegra |
Brakes | Shimano Ultegra Di2 hydraulic, 160mm rotors [F/R] |
Wheelset | Giant SLR 1 36 Carbon Disc WheelSystem |
Hubs | Giant Low Friction Hub, CenterLock, 12mm thru-axle |
Spokes | Sapim |
Tires | CADEX Classics, tubeless, 700x32c (33.5mm) |
Handlebar | Giant Contact SLR D-Fuse (XS/S:40/42cm, M/M-L:42/44cm, L/XL:44/46cm) |
Stem | Giant Contact SL AeroLight (XS:80mm - XL:110mm) |
Seatpost | Giant D-Fuse SLR, composite, -5/+15mm offset |
Saddle | Giant Fleet SL |
Pedals | Sold Separately |
Weight | Not listed |
Sizes Available | XS, S, M, M/L, L, XL |


