Originally Posted by
Nightdiver
And yet my first hand experience riding many s-ped Bosch bikes contradicts this. So bringing up the old "basic physics" is all well and good, but if that doesn't reflect real world use, then clearly it's not really that basic, with many other factors at play.
How many watts do you think it takes to cruise at 28mph on a typical class 3 e-bike? On a road bike with a decent aero position it’s going to take ~450-500 watts. I’m not claiming the Bosch Performance Line won’t allow the bike to hit 28mph. It will. I’m saying that 500-550W of motor assist is not enough to cruise at 28mph in typical conditions. I’ve got about 10k miles on e-bikes so I’d like to think I speak from a reasonably informed position.