Joined: Jul 2002
Posts: 40,863
Likes: 3,115
From: Sacramento, California, USA
Bikes: Specialized Tarmac, Canyon Exceed, Specialized Transition, Ellsworth Roots, Ridley Excalibur
9-10 cm. On all three of my road bikes, including the fixed one. It's all a compromise between aerodynamics, power, and comfort. You just have to find what works for you, your bike, your riding style. Not what some guy on velospace did.