I have an electric folding bike called Italwin eLight. They currently do 30 kmph on level asphalt and I am considering upgrading the entire electric system once the current battery becomes significantly less useful.
I wonder, considering the folding mechanism, how fast can folding bikes safely go (for prolonged times). Is constantly riding them at 50-60 kmph safe?
Regarding rim brakes, are they strong enough to safely ride at said speeds? My bike has linear pull rim brakes - are certain models of this type of brakes stronger than others? Aerodynamics and weight of the brakes is of lesser importance to me since ebikes are not exactly aerodynamic anyway, so strength of the brakes is all that matters to me.