Weighted top speed?

[Yarden92]

I don't exactly understand how's the weighted speed is calculated..
firstly, what weight is it assuming for? and can that value be changed?
secondly, from my basic physics knowledge, if I take some sort of energy source (some motor specs), it should always results the same output energy (the top speed for example), how ever, if you change some non energy source part, for example the wheel size, (increase it), the velocity output is changed linearily, which makes no sense to me.. how can you take a bigger wheel and drive faster? there must be some parameter of friction or power that is been generated by the motor..

[makevoid]

weighted is just an arbitrary number, you can set it from the UI from the efficiency field. Essentially you want to use at least 95% in any case as the motor won't do 100% efficiency. Also you could have some mechanical inefficiency or high load on the board (rider weight, backpack, etc) or some other mechanical inefficiency factors (worn out wheel or motor bearings, rough road, belt tension too high, voltage drops, etc..). For my builds and my weight I found that 80-85% is the magic number for me but I guess that if I change bearings and go on perfect flat smooth tarmac the max speed number will be much closer to 90% "efficiency". Hope this explanation helps and not confuse you further :D.