Superior engineering for a silky smooth ride. The Giant Defy Advanced Pro 2 maximises your performance on your longest, hardest road rides. Engineered for real-world performance, especially on challenging roads & long days in the saddle. The Advanced-grade composite frame features endurance geometry with the perfect blend of light weight, stiffness & road-smoothing compliance. The Over Drive 2 steerer tube & composite fork work together to boost front-end stiffness & precision. Disc brake technology with 12mm front & rear thru-axles gives you total control, even on rough roads & poor conditions. The D-Fuse seatpost smoothes out road vibrations & the Power Core bottom bracket turns every pedal stroke into positive forward motion. Advanced-Grade Composite, Electronic Ready Shimano 105 22 speed drivetrain Shimano BR-RS805 hydraulic disc brakes, 160mm rotors Description by Mike, Rutland Cycling Web Team.