gain ration — BikeRadar
Road cycling forum
edited March 2011
i found this website
about the calculation of gears. the problem is i don understand what the calcution means.
ride like the wind... with the wind... to the wind...
Just scroll down on the calculator page and you will find explanations of 'gain ratio', 'gear inches', (my prefered one) and 'meters development' (commonly used in Europe and gaining ground here).