Cannondale synapse carbon ultegra crush meets plush the synapse is the perfect balance of raw power and all day ridability its race proven combination of endurance geometry light weight and dialed vertical compliance has won it everything from spring classics to bike of the year accolades it might just be the best all round road bike weve ever made features serg synapse endurance race geometry with its slightly taller head tube slightly longer wheelbase and slightly slacker head angl