Newby needing a little help

[Madness]

Hi,

Im new to the whole e-bike thing but i have been reading the forums for a while.

I have just bought myself a kit off of ebay to convert my normal bike to an e-bike.

From shipping i test fitted it and tested it with the bike upside down, on the first turn of the throttle the wheel didn't spin but made a rumbling sound. After looking at the wires from the wheel to the controller i noticed the colours were diffrent (the blue and green were switched), i changed them so they matched and the wheel now spins.

The wheel starts on its own 50% of the time but only reaches a top speed of 9mph (250w, 24v kit) under no load. This is a little slow i think? The controller is pulling between 12-14 amps at full speed on a fully charged battery.

I have contacted the company who i bought it off who came back with this diagram for me to try for wiring the motor to the controller. Here. Which i havent had time to try yet but will tonight.

Can you give me any advice?


I think the wheel has a fault myself as it is very noisy, and it also is buckled which i have pointed out to them can not be a fault with the wiring.

Thanks for any help you guys might be able to give ( and also for pointing me to marathon plus tires, i had 2 punchers in 100 miles, i now have a set of the marathon plus ready to be fitted. )

 

[flecc]

These colour code swaps are very common on Chinese production Madness, so just wire as they've shown and try again before anything else.

Both the five thin sensor wires and the three thick phase connections can cause this slow running and excessive noise if not wired correctly.

The buckled wheel is something else of course, maybe transit damage. If it's just a bit out of true that can be corrected by a local bike shop if the supplier agrees, but the supplier should pay for that of course. If the rim is bent in any way, they must replace the whole wheel for you.
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[Madness]

Thanks flecc.

I have managed to get it working and spinning nice with no nasty noises. It now spins a nice 19mph (no load) and only pulls 9A from the battery's.

I have emailed the company giving them the option of getting it fixed locally instead of having the wheel shipped back for replacement. I called a local family run bike shop who quoted £12 to get the wheel trued. They paused a little on the phone when i told them it was a e-bike wheel but they say it shouldn't be any problem.

Now i wait on a reply, but i would have thought it would have been easier and cheaper for them to pay the £12 then to go through getting it returned.

 

[flecc]

Glad you've got it working ok now. As you say, if they've got any sense they'll pay the LBS to get the wheel trued, so hopefully they'll do that.
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