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It's a bit weird when a simple disconnection causes an issue elsewhere.

Ok that's better, your motor uses either the Hall sensor for speed calculation or it is a sensored motor. Often sensored motors will use 9 wires when a speed sensor is also used. Is th PAS a simple 3 wire sensor or is it a torque sensing that uses 4 wires ?

There are very few or no non oem 250w 48v hub motors but one can buy for instance the AKM 48v geared hub but it is 500 or 800w rated. This rating seems to fit the US market perfectly but not the rest of the world. The wattage is whatever the maker puts on the motor and tbh they can put what ever...

Some controllers are poor when it comes to the cutoff speed limit, they can vary from abruptness (brakes on affect) or a gradual decrease in current as the cut off is approached. The brake affect isn't a brake at all but just the fact current is no longer being applied to the motor and one is...

Hall sensor requires three wires and the motor needs three phase wires.

Bosh and others get away with it because the eu/regulators dislike china hub kits and hub bikes, bosh etal label their motors 250w and they are wholly believed. Also they keep very quiet and don't mention at all the controller current rating or potential max watts output, which most who can do...

Quite simply by checking the spec's of the kit he linked to ! The controller is 15a rated and 30a max, one in general should always select the battery continuous rating to be greater then the controller max out put as you should know. If one doesn't then these guys start moaning about how crap...

What is the M123 ?

A jumping chain is likely due to it being worn and stretched or the gear stop adjustment isn't correct, but suspect the former. Pin to pin on the chain check the length with a ruler/tape, 12 links should measure 12" exactly on a new chain and no more then 12 & 1/16th inch. Any moe then the...

Oh dear another one who doesn't understand that 1kw kits are; 1. Not legal. 2. Likely not suitable for the inteneded use. 3. Unlikely the bought battery can sustain more then 30a continuous for the kit linked to.

Most modern hubs are sensored so are multi pin (x 9), Only you will know if yours is or isn't multi pin. It is strange that the hub should stop working after a simple operation of disconnection unless of course a pin has been bent. I have never encountered an issue when disconnecting and...

Yes it pretty much looks like it is fully home. Did the spray get in to contact with the pins at all ? If so then a false contact may be your issue with a thin film of silicone between the two metal surfaces. It might be best to use a cotton wool bud and some and alcohol wash/isopropanol to...

Have you double checked the multipin hub motor connection is pushed to and is fully home. The two parts of the connector have an arrow to align correctly (as I expect you have seen) and there is a raised embossed line to which the male part of the connector push's up to, one should feel a slight...

This 0.5m extender is abit cheaper at £86 - £95.

There are no current limits set down in the regs other wise bosh an yamaha etc,etc wouldn't be legal, what is set down is the motor rating of 250w.

Buy as we know only 45kg max load.

I was thinking along those lines, it would be cheaper to buy the correct box size ali and using a plumbers heavy duty pipe bender to put an offset bend in the tube. 1500mm x 25mm x 25mm x 3mm ali box section £22 inc p&p on ebay.

I'm not bothered about the bolt holding the hitch on, it is made from aerospace aluminium used in the UK's space program. I can't tell you how I acquired it.

I think you are over thinking and worrying about my bike towing, I have tried flexing the ali bar when it arrived and found it very stiff. Like everything I do and try I shall be keeping an eye on the fixture to see how it goes. I think it will be safer and stronger then relying on the 9mm QR...

There is little or no side way force towing, it is simply a dead pull/push weight effect, otherwise if there was side way pressure one would notice and feel it whilst riding and the back end would be felt moving. The profile needs to be slim for the panniers to sit flat and 6mm thick ali is...