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Does it work when you turn the pedals backwards? If so, take off the magnet ring and reinstall it with the other side towards the sensor. If not, tell us which PAS and controller you have.

The trick is to put tension on the bit of tyre you're trying to lever or pull over. While the tension is on, push the edge of the rest of the tyre into the well and it'll stay there. You should be able to fit most tyres without using any tools other than your bare hands.

Many different bikes share the same lock. On many of them, the lock can be removed even when locked. Once removed, you can disassemble it and removethe tumblers so you can operate it with any key. None of that is difficult to do. Without you telling us what bike, battery or lock you have, it's...

Controllers don't give intermittent cut outs. A fault in the wiring can do that, or a tired battery or a bad connection. If it only happens when pedalling, it can also be because the pedal sensor has neen knocked out of adjustment. As a ove, if the LCD/LED control panel goes off whentyou get...

In case you don't know, a thumb throttle is easier to install and easier to use, plus it doesn’t go off when you're pushing the bike.

There needs to be a bit of freeplay in the lever. Turn the adjusting s rew the opposite way to the way that moved the lever out.

It's not the position nor the reliability that's the issue. It's the chance of broken forks and injury. I'm sure that you've seen instances yourself and had emails from guys that it happened to. As I said, it's no problem with steel forks, and I'm talking about kits, not OEM bikes with properly...

Have you over-adjusted the levers? If you go too far, you jam the break on. Try winding them in a bit.

The decision on whether to fit a torque arm shouldn't depend on the amount of power the motor makes. If you have steel forks, you don't need one unless the dropouts are clearly weak. On aluminium, magnesium or other light alloy forks, you should fit one because of the risk of metal fatigue...

When was that test done and which cells were used? There are nany manufacturers and each has many different versions of lithium cells, plus, there are many different chemistries, electrode types and construction methods. You can prove anything if you pull the right data from the right tests and...

Smart thinking, and it's sort of true. I guess that's partly how they arrived at 4.2v per cell as the charge level. In fact there are some cells that you can charge to 4.25v or higher, but I've never seen a BMS or charger exploiting that. If I remember, the Battery University did their tests at...

When people ask which bike to get, I always tell them to get the same one as everybody else because there will always be lots of knowledge about it, spare parts and somebody to help you. There have been many interesting and unique bikes appearing in the market, but if you buy one and they go...

The balancing is quite a slow process through 100 Ohm resistors. The maximum current that could flow would be 4.2/100 amps or 40 miliamps. That's about a tenth of the charge rate of a USB charger, and anybody that's used one to balance a battery knows how long it takes to get any significant...

Be careful about using an torque sensor on a standard Chinese controller with A Cycle Analyst. For it to work properly, you need current control on the throttle input, but none of them have that. I tried it, and the results were not that good. Even after a lot of tweaking, I couldn't get the...

Some cassette motors have a nut on the axle inside the freehub - sort of half in and half out. If it's over-tightened, it can over-load the bearing and make the wheel stiff. They're a nuisance because they self tighten when you tightenthe outer axle nut.

Look on the bright side. It's nearly impossible for them to prove that a bike is illegal as longas you don't put an "illegal bike" sign on it. Perhaps that why nobody has bern prosecuted.

Yes. Colours are now confirmed as what I said in my last post.

Now we have grey, brown and white are hall sensors, green is temperature, pin 5 is black (ground) and pin 4 is orange 5v. Does that add up with what you see? Unfortunately there is no way to sequence the phase and hall wires, except to try in the same sequence as the colours on the controller...

That's a rubbish photo. It doesn’t show which wire is connected to which pin. The 4 tracks on the left are the 4 sensor inputs, with the exreme left being the temperature one. If the top pin is no. 1, then the 5v and ground are attached to pins 4 and 5. Ground is the middle pin of the hall...

From memory, grey, white and brown are the hall wires, which leaves black as ground, orange as 5v and green as temperature. Logic says that brown should be 5v, so my memory might be wrong. Also, there was one where the phase wires were the same colours as the hall wires, so if yours is like...