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It is possible the nylon planetary gears have been stripped or damaged.

There aren't afaik any production ebikes that fold as neat as a brommy, so one has to go with an e -brommy (quite expensive) or opt for a brommy and have one converted (woosh will convert one with a kit) or simply buy one of the many samler ones on the market.

Of all the rear hubs the AKM128 is the smallest diameter wise at 128mm.

The 41v means that the battery is weak, badly out of balance or a combo of both.

A mosfet has two channels to test the gnd high side and the V low side.

36v is the nominal battery capacity or approx. 45/50%, the max charge is 42v and the minimum discharge is approx. 32v.

If you have the learn wires (intellegent wires) the controller will find the correct sync combo for you. Carry out the learn process then when working correctly turn of the bike and disconnect the wires, sometimes it may take a few attempts for the learn process to work. Each time one has to...

Agree this is another avenue to check out, wire up a meter so you can watch what the voltage does.

Did you do both sets of phase tests , high and low side ?

Check the PAS (pedal assist) set up on the bottom bracket, is it a one part sensor fitted to the lhs or a two piece item (could be on the rhs ).

One suspects one or more controller mosfets have failed, the slow going up hill causes heat to build up. Mosfets have an upper temp before they thermally cut out once cooled they work again, it sounds likely as this occurred more then once. Finally they probably shorted permanently. Did you...

Carbon doesn't take much to give way in a crash, It was SW who posted a clip a couple years back of a bike snapping during an off road race.

So you have a throttle and it works fine on the throttle !!!

I had a cube fs bike and scrapped it, somewhere I picked up large full width dent on the underside of the down tube. I decided not to continue using the bike as the chance of the frame giving in wasn't worth the risk esp of road going quickly. I still have the rear frame and suspension pivots...

Firstly one assumes the cranks/pedals turn fine when the chain has been removed !!!

They sell kits and batteries, the chance of some dick trying to connect one of their batteries with controller current too high for it will save the battery from melt down, they are protecting their design and build process. Certainly a very large multicell battery it makes more sense but not a...

It looks complicated but in reality it is very simple step by step chart process to follow, you do need block type connectors or bullet type connectors and not the water proof type at the controller end to carry out the wire swapping. Often it's a combo of both the hall and phase that is out of...

It would probably be a Heinzman but whether it is actually 100% produced in the land of the Bosc I don't know.

Personally any damaged frame I would scrap or not use.

Tbh cell fusing for the general e bike batteries we carry isn't necessary.