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The all-new Giant Defy series of On-Road Performance Endurance bicycles are designed from the ground up to help you tackle long days in the saddle and rough, unpredictable roads with confidence and control. Jon Swanson, Giant Global Category Manager for On-Road, talks about Giant's breakthrough performance in handcrafting the Defy series for 2015, and shows the test results that prove the Defy Advanced SL is the most balanced, well-rounded endurance road bike in the world.