Computer Software vs Eyeball Bike Fit

The human eye can only pick up so much on its own

We sometimes need a little hand to help us achieve success.

Think of an astronomer without a telescope, a lab technician without a microscope or something a little closer to home, office worker without a computer. These are all things that nowadays we take for granted and in way this just how I think about bike fitting in 2016. You still have lots of people doing "static eyeball" fits on clients. The human eye can only achieve an accuracy level of around 7 degrees on a static angle and that level drops to around 10 degrees when the angle is moving "dynamic"

Imagine an engineer working to this level of accuracy!!


Static fit has been around since the 70s and is what I like to call the "caveman fit", I don't think I need to explain why! Simply having the rider stop and looking at the angles with the naked eye or using a goniometer device on someone's leg. The issue with this is that when the rider stops pedaling the muscles relax and so does the heel. The static leg angle will always differ to when someone is actually rotating the pedals!

Dynamic fit is the 2016 way to bike fit a client. With Dynamic fitting the rider is filmed and then the software allows us to put the angles on to the moving pedaling riders realtime. Very accurate and very fast! This also means we can highlight a section and take a measurement several times over if required. This way of fitting brings down the tolerance to around a 1-2 degree accuracy level

myself the same as every fitter have used the static method in the past before the technology was there to help. In every job a person thrives for perfection, I am no different! Technology is here to stay and everyday it becomes more advanced. Embrace the change. A tool cannot replace someones knowledge of the game, it purely allows then to achieve a more accurate more satisfying end result which at the end of the day is what really matters.