Electro Bike World KT controller speedometer issue

allenj

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Please forgive me if this has already been covered, I cant seem to find a definitive answer. I just received the RadPower 6+ Upgrade Kit with KT Controller from Electro Bike World. I cant get the speedometer to read anything but "0" unless I am pedaling (The Radrover 6+ stock controller showed my speed at all times, pedaling or not) I've tried all the P2 settings from 0-6 and none of the settings on the main screen show my speed in motion unless I'm pedaling. Can anyone give me any pointers? I've googled this for hours to no avail, Electro Bike World support has told me several settings to try and I've been thru the entire user manual for this controller with no success...
 
Please forgive me if this has already been covered, I cant seem to find a definitive answer. I just received the RadPower 6+ Upgrade Kit with KT Controller from Electro Bike World. I cant get the speedometer to read anything but "0" unless I am pedaling (The Radrover 6+ stock controller showed my speed at all times, pedaling or not) I've tried all the P2 settings from 0-6 and none of the settings on the main screen show my speed in motion unless I'm pedaling. Can anyone give me any pointers? I've googled this for hours to no avail, Electro Bike World support has told me several settings to try and I've been thru the entire user manual for this controller with no success...
Can you provide a link to the controller and a pic of the motor connectors on the controller and motor side (pins or conductors visible)?
The motor is a geared motor. A geared motor requires an internal/dedicated speed sensor, since the hall sensor signals (used for the speed signal for direct drive motors) does provide a signal unless the motor is powered (when you pedal, in your case). Not all KT controllers have the option of using a dedicated speed sensor and have the additional conductor.
 
If the Rad has a bafang motor with an internal speed sensor, the KT controller should pick it up in the motor cable. In that case, P2 is probably 6, as most bafang hub motors have 6 magnets for the speed sensor.

I see the kit appears to be a 35A KT controller with an LCD8H display. Electrobikemust be pretty proud of this combo, given their pricing. Yikes.


You can look at your Rad. If there's a magnet on a spoke with a sensor attached to the frame, that's an external speed sensor. Otherwise, it's inside the motor.
 
It must be inside the motor. Speedometer Did not work for me at all while coasting. Only time the Speedo would work is when pedaling or using throttle. AND when the Speedo did work while pedaling or using throttle the readings were jumping all over the place. I tried all P2 settings 0-6. Made no difference. I tried all P2 settings extensively. The RR6+ must have the speed sensor inside the motor. After I put the stock controller back in the bike everything worked perfectly so that tells me something was wonky with the controller or maybe it’s just incompatible with the motor that is on the bike 🤷

I just converted a bike using a kit with a KT29 controller and LCD3 display. Your description is exactly how my speedometer worked until I finally installed the included sensor and magnet on the wheel. I was hoping to do without the sensor until I saw how it operated...
 
It must be inside the motor. Speedometer Did not work for me at all while coasting. Only time the Speedo would work is when pedaling or using throttle. AND when the Speedo did work while pedaling or using throttle the readings were jumping all over the place. I tried all P2 settings 0-6. Made no difference. I tried all P2 settings extensively. The RR6+ must have the speed sensor inside the motor. After I put the stock controller back in the bike everything worked perfectly so that tells me something was wonky with the controller or maybe it’s just incompatible with the motor that is on the bike 🤷
Return the kit and get a refund. After charging over double what those components are worth, you should have received a VIP level of support or immediate replacement.
 
If this happens to anyone else, look inside the controller and trace where the thin white wire coming out of the motor cable contacts the circuit board. If you can get a probe on the solder pad and spin the wheel by hand, with the bike powered up, there should be a up/down 5 volt signal on it,
 
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