Handcrafted with Giant’s premium Advanced SL-grade composite material, Defy Advanced SL was developed with input from Giant road pro racers for long, gruelling classics races and epic road rides. It features more rounded tube shaping to increase compliance and reduce fatigue. The junction between the seatstays and seattube is lower, which helps absorb road shocks and vibration. The oversized and tapered OverDrive 2 steerer tube boosts cornering precision. The MegaDrive downtube and PowerCore bottom bracket deliver predictable handling and unmatched pedalling efficiency.