3 ms·
> By the way, technically in the EU there is no power limit. There is a 250W 'continuous' power limit, but 'continuous' is never defined, and Bosch's bikes go u
by throwaway7767 10y ago
> By the way, technically in the EU there is no power limit. There is a 250W 'continuous' power limit, but 'continuous' is never defined, and Bosch's bikes go up to 500W for at least 10 minutes.
It's not defined, but the way the law is applied it's based on the rated wattage from the manufacturer (i.e., what's stamped on the bottom of it). Most bikes you can buy in EU go over 250W but the motors are rated by the manufacturer as 250W. My 500W motor will never be legal because it was rated 500W by the manufacturer (even then, in reality it does 700W continuous with ~980W peak).
- IshKebab 10y agoYes but as motor manufacturer I can make a 10 kW motor and "rate" it 250W.
- petre 10y agoYou'd get busted when the EU authorities find out. After an accident happens perhaps. They should rate the whole system: drive + battery to 250 Wh sustained and maybe 500 W peak power (30s) with motor cutoff at 25 kph. I can do all of these with my legs only so it's esentially a bicycle. The label thing seems dumb. Of course manufacturers would sell 250 W rated drives to comply.
- IshKebab 10y agoWell apparently not because Bosch motors are 'rated' at 250W but happily run at 500W for at least 10 minutes (that's as long as I tested). As far as I know the EU authorities haven't found this out... especially because there is nothing to 'find out'.