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I've seen a couple in Brighton and Telford. They're quite rare and very difficult to spot, especially when they're in a crowd. Use binoculars to identify them from the givaway sign - black burn marks on the fingers, colloquially know as Kentucky fried fingers. The best way to catch them is with...

Without the throttle connected, red to signal on the throttle connector should be 0v, and 1.2v with it connected.The signal wire is an input to the CPU, so normally there can be no way it's got 5v on it unless the CPU is blown or the cable is shorted. If you're getting 5v on the signal wire...

The controller is powered from the control panel, not directly from the battery. The wires that power the control panel branch off the two battery wires inside the controller, so if there is no power on those wires (red and black in its connector), a wire must be broken, but I bet you didn't...

I ask again because it's important: Is the motor connector in ALL THE WAY TO THE MARKED LINE.

The cable must be damaged somewhere unless what you're feeling is the normal magnetic clogging. Can you spin the motor at all by hand. These motors normally do a couple of turns or more when you spin them by hand. If it stops instantly, there's a short somewhere.

Can you build wheels?

You need a higher centre of gravity for better handling at speed. It needs to be in the right position for the conditions of your ride. Too low is bad, except at sub 3mph when there's little gyroscopic effect, and to high is also bad. If low was best, every motorbke would have a flat 4 engine...

Have a look at Ebay. There are some reasonable folding electric bikes there for £500 to £600. If you see one you like, post details here so that we can check it out for you.

You get that when the controller is not firing a sychronising the power pulses correctly. There are a number of possible causes, but using logic, if it was working OK when you put it away, some are more likely than others, so, I'll put them in the sequece of likeliness bearing that in mind: 1...

Bike weight is important if you're small, but not if you're big or heavy. Obviously, the less all-up mass, the better, but a saving of 2kg in weight would make less than 2% difference all round when you weigh 100kg. When you have a non-electric bike, each KG of mass between the rider and the...

As a guess, I'd say that your throttle is connected in the wrong sequence. Check the colours of the wires each side of the connector.

The power from those two wires doesn't go to power the 5v even when there's nothing wrong. If you just do as I'd say, you'd get to the cause of your problem quicker.

These KT controllers and their ratings are fine. I don't think I ever heard of one blowing in normal use. If you had a 20A controller, that's how much current it'll allow on level 5, so it would get hotter. Your present controller will allow a maximum of 18A x 40v, which is 720w, but the...

It just seems a weird thing to do, when most people have the LCD in the middle and the buttons by your left thumb, where you can reach them. You'd make a brilliant guitar or piano player if you can reach that thumb button thing from the grip. I remember Jake E Lee stretching from 5th to12 fret...

I completely disagree. I'm 68 and I've been a motorcylist since 16. In my 30s and 40s, I used to ride about 40,000 miles a year on every type of motorcycle from mopeds to hyper-sports bikes. I've never had fewer than three motorcycles since the 1970s. I started riding electric bikes 11 years...

What do you meaan by "better"? You already have one of the best. I'm looking at your photo of the handlebars, and I'm a little confused about why you off-set the LCD and put the switch where it's difficult to reach. There must be a logical reason, so what is it?

To get the best advice re a replacement, you need to show all the connectors attached to your controller in a way that clearly shows what wires are in each connector. Also, you must show a picture of your control panel on the handlebars. Before buying a new controller, it might be an idea to...

Help with what? Cut the wires on the blue light if it annoys you.

You get a UV torch in the kit. https://www.ebay.co.uk/sch/109471/i.html?_from=R40&_nkw=uv+glue+kit&LH_TitleDesc=0

Do you live near shrewsbury?