Originally Posted by
Garfield Cat
A fitter can only do so much, more like a static measurement.
It depends on the fitting equipment at fitter disposal. E.g. when I had my bike fit the fitter took several saddle pressure mapping snapshots during pedaling at different levels of effort and used this information to fine tune saddle angle (saddle showed pretty much ideal pressure map without any hotspots, so there was no need for a different saddle). BTW, such pressure map is probably by far the most reliable way to measure the seat bone distance, so I'm pretty confident that this measure is one of the most useless things ever - the only thing it potentially tells you is what saddles will probably be too narrow for you and nothing else. E.g. my seat bones are 110 mm apart, so I'd be better off with wider saddles than that - which are the wast majority of them anyway, so how exactly does this help? My current saddle of choice (and the one with a perfect pressure map) is Cobb San Remo and it is 151 mm wide...