- Mazovia, Poland
In reply to...I'm of the view more volts = more performance. Whether or not it's needed/desired/legal is another thing.
Comparing like for like - take a 48 volt equipped ebike and throw in a 52 volt battery - come back and tell what your findings are. Plenty of evidence around to suggest a performance boost of in the order of 7.5%.
A further example is the Frey Beast running 60 volts through the Bafang Ultra motor with the appropriate controller and generating torque of 240nm compared to the standard 160nm.
I have noticed most of the dedicated ebike manufactures that do offer 48 volt systems and 500w+ nominal motors don't have the top drive train components and thru axles found on bikes with 36 volt systems