Replace controller

[Timmate]

Hi, I am looking to replace the ebike controller on my wife’s bike. The old controller has 3 speed PAS levels much as a cruse control, which works fine but is horrible to use when riding as a group with other people. The motor is a Bafang BF1711B11631. I am looking to have a 5 level power (current) assist controller. Do you think a KT36/48SVPR-HRDF02L with a LCD03 screen would do the job. Thanks

 

[E-HP]

What speed does the group usually ride at? The KT PAS runs pretty smoothly when engaging and disengaging, so not jerky or abrupt. Perhaps the 5 levels will be enough; for normal riding I'd ride in PAS 1 most of the time when I used my KT. That said, the 5 levels are fixed and can't be fine tuned, although there are settings to adjust overall speed or current output. I think it will be a pretty good option, short of getting something programable and more costly.

 

[Timmate]

Thanks for your reply. We don't ride very fast we like to look around. around 15 to 20 km/hr (13 mph). What I'm looking for is a controller that as you come to a hill you simply step up the PAS to help you go up regardless of the what speed your going. simply increase to torque as required.

 

[E-HP]

It depends on your setup (wheel size etc) but on PAS1 my KT would go about 15mph or so. As I mentioned the PAS engages and disengages smoothly, so if you want to go slower, a combination of pedaling and coasting still feels natural.
It will perform as you want on hills within its power limits.

 

[docw009]

I agree with E-HP, the LCD3 and an 18-20A KT controller will run most 26" bikes around 13 mph in PAS 1 at 36V. Probably will show about 120W on the LCD display. If you wish to go slower, the current can be reduced by up to 50%. with an LCD3 setting (C5). and there is also a setting (C14) for strong/normal/mild pedal response.

In my opinion, the pedal response of a 5 level KT display is one of the best you'll find in the cadence sensor type controllers.

 

[Timmate]

thanks