Giant Defy Advanced Pro 0 Carbon Bike (2015) – Ultegra Di2 Shimano Gear set. Up for sale is a very lightly used 2015 Giant Defy Advanced Pro 0 carbon bike. At the top of the range this model has the full electronic Ultegra Di2 Shimano 11/28 gears which are super smooth. The brakes are hydraulic disc brakes and the wheels are 700c Aluminium superlight P-SL0. I have added 28mm tyres for more comfort and have a spare set with inner tubes. It is in excellent condition with a couple of scuffs to the side of the gear shifter and on the corner of the handlebars where I slipped off in the wet (hence my now’fair weather’ riding). Otherwise the condition is super and it is a joy to ride, very light and quick. Here are the specs. Advanced-grade composite, Electronic ready. Advanced-grade composite, Full-composite OverDrive 2 steerer. Giant Contact SL, OverDrive 2. Giant Contact SL, 31.8mm. Fi’zi:k Aliante, K:ium rails. Shimano Ultegra Di2, Electronic. Shimano R785 Di2, Electronic. Shimano Ultegra 11×28, 11-speed. Shimano R785, Hydraulic disc, 140mm. Shimano R785, Hydraulic disc. Giant P-SL0 Disc WheelSystem; 30mm deep, 23mm wide alloy. Giant P-SL0 Disc WheelSystem; Sapim Race. Giant P-SL0 Disc WheelSystem; [F] 20h, [R] 24h.