Team Nuts' Build Diary

[Rapidrory]

On the subject of cheap HW motors yet again (seemingly a favourite topic of mine ), I was having a look at the economy Ampflows today and comparing their performance charts to a Bosch 750Ws; the E30-150 seemed a little weak with a 750W peak, however the E30-400 peaks at 1.5KW (compared to a Bosch's 1.2KW peak), and is only about £70. However reading around I found this quote from Mario about the E30-400 here:

I would compare it to the Bosch 400, but with the 400 @18V

It can do a heavy, no doubt. Price and weight are favorable.
But gearratio should be "high". Like 15/1 for 200mm wheels.

And no, it isn't too good to be true. It's about normal.

This doesn't seem to match up with the performance charts, which imply that it should be slightly more powerful than a Bosch 750 on 24V. Are the E30-400 charts wrong? Is Mario underestimating them? Am I just missing something? It just doesn't seem to add up as it is..

Posted the charts for the E30-400 and the Bosch below so you can see what I mean...