Snatchy BBS02 500

[cycling weakly]

I have just built a BBS02b into a hardtail Kona. The motor is exactly as it left the factory, with 3 power levels. The motor pulls well enough but the take up is very abrupt, both from a standstill & after stopping pedalling. I previously had a GSM motor which was much smoother but less powerful. Is this normal & if so can it be smoothed out by reprogramming the motor?

Steve

 

[anotherkiwi]

I have just built a BBS02b into a hardtail Kona. The motor is exactly as it left the factory, with 3 power levels. The motor pulls well enough but the take up is very abrupt, both from a standstill & after stopping pedalling. I previously had a GSM motor which was much smoother but less powerful. Is this normal & if so can it be smoothed out by reprogramming the motor?

Which is why I chose the GSM with external controller. At one point I was running 18 Amps - 740 Watts battery hot off the charger. Now I find 16-17 Amps is plenty.

Yes you can reprogram your BBS02 to make it smoother and have up to 9 levels depending on your LCD.

 

[cycling weakly]

I haven't made any adjustments yet, I will set it to 9 power levels & see if that makes any difference. As it is now I don't think chains are going to last very long.
Steve

 

[Deleted member 4366]

It's the way it's been programmed. you can change it completely to make the take-up much softer. I can't remember what parameter it is as I haven't done one for a while. Perhaps somebody else with a better memory can chip in.

 

[Fordulike]

Once you get into the programming software, go to the Pedal Assist page.

From there, changing Slow Start Mode (1-8) to a lower value will result in a slower ramp up. Also changing Start Current (%) to a low value will result in a smoother take off.

 

[tommie]

The `Start Current%` needs to be pulled back a bit.

Go here and have a read--> https://electricbike-blog.com/2015/06/26/a-hackers-guide-to-programming-the-bbs02/

get yourself a programming cable and try some of the downloads on that page. or alter the parameters yourself, but be very careful, you can easily blow the controller.

 

[cycling weakly]

Thanks for the advice. I would like to reprogram it but I'm a total numpty with a computer. I am based in Burnley. Is there anyone within a 50 or 60 mile radius with the equipment & experience to do the job if I brought the bike to you & crossed your palm with plastic £5 notes?
Steve

 

[Steve UKLSRA]

Thanks for the advice. I would like to reprogram it but I'm a total numpty with a computer. I am based in Burnley. Is there anyone within a 50 or 60 mile radius with the equipment & experience to do the job if I brought the bike to you & crossed your palm with plastic £5 notes? Steve

I'm in Stockport area and will do it for a beer if it's any good to you

 

[cycling weakly]

Thanks Steve I'll take you up on that. How do I get in touch with you?

Steve

 

[Steve UKLSRA]

Thanks Steve I'll take you up on that. How do I get in touch with you

Just pm'd you Steve