ADO DECE 300C speed limit

[argy]

Hi everyone.

I have to admit to starting off by being a bit lazy in case someone already knows the answer...

I recently bought the subject bike which is a nice, if somewhat heavy, bike. It is speed limited to 25 km/h / 15.5 mph and I find that I'm normally cycling at around 17-18mph. In effect I'm lugging a heavy bike around under my own power and only getting the odd bit of pedal assist if I hit a hill or when setting off at the lights. The good news is that I'm getting penty of exercise.

I've read a few posts here and elsewhere about uncoupling a wire connection associated with the motor controller to eliminate the speed limit. I believe that my bike is similar to the ADO D30. Has anyone taken a look at the controller and figured out if there is a way to safely remove this speed limit? I'm sure that the same bike is sold in USA where the limit is a more reasonable 20mph.

Thanks in anticipation
Argy

 

[argy]

After a bit more digging it looks like the controller on the D30 is an ADO ZM A20 controller. 36V / 48V 15 +/2A.
My ADO 300C bike has a 36V battery so at 13A that would be able to supply 468W maximum. More than enough...

This link shows the controller (I still haven't checked to see if this is the same as mine...) and the often referenced blue wire is visible.

Has anyone worked with this controller?

Cheers
Argy

 

[argy]

I opened the bike stem to have a look at the controller. It's a different controller. Very neat and I suspet that speed control and other functions are all managed in the item's firmware. The controller display is the S830 which has a USB socket, very good for keeping the phone charged on long rides.

The yellow and brown cables take the input fromthe Hall sensor. The black connector on the right passes through the stem to the display unit. The red and black cables are the power input from the battery. There is a thick black cable which connects to the motor. There are two other cables sets with connectors which are unused.

The controller model number is ZN-DC30CIN-500. I've not found any reference to it in a Google search yet...

 

[Grisaks]

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