Grinch24

I do have a 3d printer so may look in to that. I agree with you with everything it is unlikely for manufacturers to help. Thanks for your interest in my post. I'm sure I will come up with a solution

The torque sensor is definitely different. The torque sensor on the x is from same manufacturer as controller (mivice). Controller and torque sensor on d21 are generic and not compatible with x electronics. One person on a fb page said that they had managed to do it but is an old post. I have reached out but nothing yet. The install is ok everything works but keypad looks out of place and it's vaunrable to the elements. Would be one less thing to go wrong if it can be engineered out. I have asked fiido but they seem reluctant to give any help and the controller manufacturer is also not keen to help.

The x motor, controller, brakes and torque sensor are completely different to the d21. The x electronic set up is better and I got the replacement d21 virtually straight away so no waiting for x v2. So I decided to put the superior electronics and brakes on the d21. Although you have to have the keypad with the controller on the x. So I was wondering if the x controller could be programmed to be used without the need of the kepad to clean up the install of the components on the d21 frame. Hope this clears it up.

Hi I had the fiido x v1 and opted for a d21 replacement and wanted to utilise the electronics of the x on my d21. I have so far been able to get the everything working on the d21 frame. The only issue I have is the keypad that is needed to activate the bike power. I have managed to attach this to the bike with cable ties but am interested in being able to programme the controller to not need the keypad to activate the power. The controller is a mivice c201 and has and Upgrade Maintenance Method of Serial Uart. Is there anyway to connect to this controller to alter the programme? Tia

So got myself a cheap soldering iron proceeded to open the controller to see its completely filled with a gel. So impossible to get access to the shunt. Back to the drawing board me thinks

Thanks for everything you have said. From what I can tell my best, quickest and cheapest option is to carry out a shunt mod on the current controller and see how the 250w motor fairs. I will now research carrying out this mod. Any advice before I proceed?

On the 350w the pas setting 1 was perfect and gave just the right amount of assistance. On the 250w one I have to put on setting 3 to give any feeling of assistance. I will try the shunt method. Any recommendations on this mod? I am a fairly confident diy person. Just need a soldering iron now

I originally had a 350w motor on a previous bike and the 250w on this d21 doesn't feel up to it. So would like a little extra. I thought maybe the 350w would be able to attach to the existing hall and phase wires.

Hi It goes to the crank area. So I'd assume its as you said before that its probably a TS.

Hi Thanks for the reply. From my basic knowledge I can see a 4 in to 1 cable up front where the two power off brake sensors, throttle and display go in to. Two cables come out one goes to the front light and other goes to back and splits to the two flat connectors. The black and white one goes to the rear light. I will attach some more pics.

Thanks for the reply. I have taken a few more pics. So a few pics of controller and wires. Is it possible to get a 9pin adapter to connect the 350w motor to the controller and then it will work or will more need to be done? Thanks

Hi new to the ebike world and I am after some advice. I currently have a 250w motor, 36v 11.1ah battery and the pictured controller. I also have a 350w motor available to upgrade to Would the controller be able to take a straight swap and give better performance? If not what would be a good controller to enabe this. TIA