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The two green wires marked intelligent identification are the self-learning wires. They allow the controller to configure itself depending on the arrangement of hall and phase wires, so that you don't need to do the procedure in the above post. You switch everything off, connect those two green...

Are you sure that a 52V BBSHD is the right kit for you. They're not very relaxing and can do a lot of damage/wear to your drive train. Did you think about a high torque hub-motor, like a Bafang BPM or MAC that are much better suited to touring type riding?

It's very straight forward. You hoick out the old cell-pack and all the wires, then you put in the new cell pack and solder the two power wires to the output terminals, and two wires to the charge socket. You just have to put them the same way round that they were before. The fuses are optional...

A proper rack battery would be a much neater solution if the proposed battery doesn't fit.. You can get rack batteries that come with the attachment plate, which you bolt to the rack, then the battery slides on and locks in place. Also, what about buying a new cell-pack. you just need to check...

It would have been better to show individual wires in your diagram because when you clump them together in a single line, it doesn't show the unique way that the LED panel converts the pedal assist signal into a throttle signal. You have about a 50/50 chance of success by replacing the blown...

Do the tests detailed in post #2

It looks like your new controller has self-learning wires, but not easy to determine from your photo of jumbled wires. Did you do the self-learning procedure? Can you give us a link to the listing from where you bought the controller so that we can confirm the wiring?

That's the same as saying that the entire human population could be wiped out by an asteroid. Just because it hasn't already happened. doesn't mean it won't. Until now, there's more chance of you winning the national lottery jackpot than getting prosecuted on an electric bike, since it's...

You can use any battery of the same voltage as your original as long as you can find a way to mount it securely. Those batteries that go behind the seat post need to be held down to stop them from disconnecting every time you go over a bump. They use the lock strip for that, so make sure that...

Front motors always sound loud compared with rear ones for some reason. I can't comment on whether your noise is OK without hearing it. I doubt that a dealer can do anything about it other than replace the motor, so you might as well carry on with it. very few dealers would contemplate...

It's only worth it if you need the extra speed and power. A 48V BBSHD is more than powerful enough for most. The difference is noticeable. You lose a bit of efficiency unless you have a very high cadence when running at 52V because it increases the cadence at which you get peak efficiency in...

Despite all the scare stories, nobody can produce any evidence that anybody has ever been prosecuted for using an illegal bike in the UK.

That's a bit hysterical. There's perhaps a small chance that there could be some consequences if you were caught using an illegal bike. At least one of our forum members was involved in an accident on an illegal bike. The police looked at his bike, which was by no means stealthily illegal, and...

If you're disabled in any way, some of the societies that support the various disabilities give grants for mobility. Two forum members got grants for ebikes from the MS Society.

You'll probably need the extra capacity anyway because your battery will run down quite fast at 25 amps.

I just want to add a bit more to this because we get quite a lot of posts from guys that ask about electrifying their carbon-framed bikes. It takes approximately 1% less effort to pedal a bicycle up any incline for each 1kg of mass/weight you can save, so it will take about 2% less pedal effort...

There's no way that the windings in the motor are burnt out. it doesn't work like that.

A 10Ah battery is going to struggle to give 25A., and even if it could, you're probably going to shorten its life. Do you know which cells you have in the battery? To get a true reading of the max current, you need to slow the motor right down. I lift the wheel off the ground, spin it up with...

If the MOSFETs in the controller are blown, you get a dead short across the battery. You can check them with a meter set to measure resistance. You disconnect everything from the controller, then measure between the black battery wire and each of the three thick motor phase wires, the resistance...

Carbon frames are generally not suitable for conversion. You don't need a carbon frame when you fit a heavy electric kit with loads of power. Find yourself an aluminium MTB, which will be much more suitable and more comfortable. You have two main problems when trying to fit a BBSHD to a carbon...