Hello folks!
First post here, but I've been through this whole thread for the last few months and finally made my choice on the BBS02 750w, along with a 11.6Ah battery.
Here is my build, I've choosen a road bike because the minimum distances I usually cover here in the country are at least 30 km.
For instance my commute to work is 43 km and still have to go back home at the end of the day!
The drive is doing really well indeed, and I have been able to return an average of 42 km/h on that commute trip.
It still need some refinements like a proper button instead of the thumb throttle that cannot be fitted to the handlebars, a gear change cut off switch and surely a wattmeter.
However I'm still confused , because I was aware of the BBS02 750w short according to em3ev.com, but i wanted one quite quickly, at least before the winter returns, so I asked conhismotor and they said they were able to send me the unit and claimed they have some in stock.
It took a bit more than one month since the initial order to arrive at my door, especially because of the battery according to them..
And this is what I came up with:
Is it some kind of temporary version before Bafang put in production the new 25A controller? which is by the way well over 750W.
And the other surprising thing with that unit, is the 46T provided chain plate, instead the 48T usually provided.
But even though, the unit is really astonishing, able to climb insane grade without peddaling or going over 55km/h on flats without my legs helping, so it clearly seems that the speed limiter isn't working. On the 46T/12T ratio the max no load speed is 63km/h, isn't it supposed to cut way before?
So what exactly is that controller, a tamed down version of the 25A, will I be able to upgrade it with the 25A version in the future?
Anyway I'm about to order a wattmeter and a USB to TTL adapter to sort all this, and give some updates.
Cheers and thank you again for all these unvaluable infos!