Anyone building a Bafang BBSHD 1000W bike soon?
- Thread starter Fordulike
- Start date
The phrase 'greased lightning' springs to mind
I can't see the point of the BBSHD, as the BBS02 48v 25A climbs just about anything.
Many people use the BBS02 with stock factory settings, and don't realise that they are limited to just over half the available power.
I've reprogrammed mine to a limited 1000 watts, and it pulls like a beast. Admittedly, I have a custom 42T chainring on there too.
Yep, 42T is the way to go. The improved chainline helps too.
Just out of interest, was yours programmed by the vendor, or have you tinkered with the programming yourself?
Paul's a good bloke to buy from. Here's some stock settings that he usually ships the units with:
http://electric-fatbike.com/2015/06/26/a-hackers-guide-to-programming-the-bbs02/
Note the ' Keep Current ' set at 60%, so you won't be getting all the oomph when using PAS modes.
I changed mine to 80%, to equal 20 amps or around 1000 watts in PAS 5. Works quite nicely in all PAS modes.
I don't have a throttle attached!
I'll be honest and please don't take this the wrong way. Judging by your other posts, you are just starting out in the world of electric bikes.
If I were you Cathal, I would build a bike using whatever kit you decide on. There can be a few pitfalls, even for peeps with good DIY skills.
Then, ride it around for a few hundred miles, discovering handling characteristics and ironing out any problems along the way.
If you then decide that you want to change any of the controller configurations, you could then tweak a few settings.
One can totally mess up a good controller by diving in too quickly with changing configs though!
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Not 100% sure what you mean here, but tweaking throttle settings normally means connecting a controller to a laptop/PC via a cable and using programming software.
Most throttled bikes come as standard with the ability to control the motor from very slow to top speed, depending on how far the throttle is twisted!
The trouble with the BBSxx kits, are that depending which vendor you buy from, can depend on how they are programmed.
If they come with stock Bafang programming, then the throttle will act normally. If the programming has been tinkered with by the vendor, then indeed the throttle may act more like an on/off switch.
The controller's throttle characteristics are defined by how this page is programmed in the controller's software:
Again, not something you want to rush in to change, as it can mess up the rideability of the bike!