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You're worrying about nothing. The extra weight won't have any affect on them whatsoever unless it's a front motor that'll upset the handling a bit, but won't do any harm to anything.

It could be a leaking MOSFET in the controller. You'd have to put an ammeter or wattmeter on the battery wires to see if current is flowing when the motor is switched off.

The torque sensor offers very little for a hybrid type bike. It might even bring more disadvantages than advantages. I wouldn't say that it should be the main deciding factor. I'd be looking at things like ease of installation and reliability along with the important performance characteristics...

Don't need brake sensors. Pedal sensor goes on left side Cabling comes with the LCD and controller. You keep the Suntour connector and solder the controller end of the motor cable to the new controller.

You have to replace the controller and LCD, then do some basic wiring and solder some wires. Cost is about £70 if you want a nice control system or as low as £40 for an average control system.

A short test around a car park or along a flat road is not enough to get a fair impression of the differences. You need to do 20 miles of varied terrain before the differences show themselves in a significant way. It's very easy to get a false impression from a short ride.

Get some Schwalbe Marathon Plus tyres and forget about punctures and tyre replacement.

Is it a sensorless controller? If so, that's to detect the motor position for timing because you don't have hall sensors. It takes a back emf pulse from the phase wires and converts it to a 5v pulse which it sends back to the controller's hall wire connection points so that they can use the same...

It might help if you say where you are.

Error 10 means the controller can't communicate with the LCD, so you must gave damaged one of the wires inside the cable, or you wiped out the controller or LCD when some wires shorted. Check that no pins in the connector got bent.

If it's a separate PCB, it's probably a DC/DC converter. If not that, it must be a decent MOSFET to switch higher pose lights. What voltage do you get on the connector? What controller is it?

The backlight comes on, but there's no transistor on the controller's pcb to switch on lights. I've seen that working in many Lishui controllers, but never a KT. Some non-KT LCDs have the transistor on their PCB and a separate connector, so you have a 5-pin and 2-pin connector attached to the...

Not with a KT controller.

I've never seen a KT controller that can switch lights. You have to use your own switch.

It's the same market as the Gtech. Why oh why didn't Gtech have a geared variant and a double-sized battery option? This cowboy at least has a bigger battery than the Gtech plus hydraulic brakes, but without gears, I'd be surprised if you could ride it far enough to deplete the battery.

They're wrong when they say that the motor is working outside of its parameters unless they mean for legality. The faster a motor goes, the less current it'll take, the less torque it will produce, the less heat it will make and the less stress there will be on it.

I rode one of my 2WDs in deep snow with a throttle giving equal power to both motors. It managed steep hills without any problems. The front wheel frequently lost traction and the rear one too, though not as much, but the gyroscopic affect of the spinning front wheel keeps the bike stable, so...

The controller cannot influence the charging of the battery. When you have charging problems, a simple test procedure will point you at where the problem lies. First, you measure the voltage on the charger jack, then you measure the voltage on the battery's charge socket. It's a bit tricky to...

No, it's legal to use any motor rared at 250w or below. The EN15194 standard calls up a standard for a test procedure to verify the rating, but the test is designed to control over-rating the motor. It would be illegal to sell a bike with a motor that was rated at 250w and the motor overheated...

If you you look in the standard and the associated tests, you'll see that it's actually the minimum power, not the maximum. The motor has to be able to run at 250w output power without overheating. If it can run at 1000w without overheating, it's still a pass. The only requirement is that the...