Typically, 7-10 percentage points

In a continual persuit of objective improvement, I've been doing pre- and post-fit SpinScan tests. Most clients are seeing an immediate 7-10 percent improvement in their pedaling effectiveness just by being fit correctly. It's amazing to see the change.

I've begun to use it with handlebar placement as well. It helps to determine handlebar height. If I see a significant drop in Spinscan when a rider goes from the hoods to the drops, it's an indication of a fit problem. Most of the time, it's related to the acuity of the hip angle.

Objective evidence of improvement is what Gulf Coast Cycle Fit is about.