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For after market contorllers KT are the most available brand and they certainly have a go tthe market sorted. if they went OEM only the diy market would be in trouble. Lishui is another brand but do tend to be mostly OEM, sometimes a controller and display option turn up on aliexpress or one can...

I have had two cyclic rears and both failed, I simply use cheap £20 ones now which use the same mounts as per the go pro's.

Are you any good at soldering ?

Someone has modified a bosh motor to work with KT controller kit, I saw it either on ES or the german forum. They had to do some work with adding halls to the motor so might be worth a search to see.

KT controller and display cna be bought on from various sellers and platforms, ebay, aliexpress, topbike kit, torque tech uk, etc , etc . It is always best to buy the controller and display from the same vendor, some wire connectors will be different so you will have to solder on some new ones...

It will be an OEM only supplied item, if the bike seller /vendor can't help then you will have to opt to buying and swapping it third party controller and display such as a KT brand.

I missed the Kt controller, 48v will work but if it is the 6 mosfet controller, watch out for over heating and thermal cut outs as at 48v they get very hot if one climbs hills slowly. Battery wise buy a 48v one.

Carrera's are 36v, On expects 48v will smoke the controller.

The answer in no the strands are not the Gnd wire, the gnd wire will be Black sheathed all the way as the others are sheathed. A simple get around is to cut back the larger outer sheath a bit more until you find the Gnd wire and solder an extension to it, solder a separate Gnd to the PCB and...

50km likley nearer 40 depending on the control system used, very flat terrain ans lowest assist wiht no head wind to max out the range. Of course mileage is unlimited if one pedals without assist.

A PAS needs an output from the controller, you will have to show nice pics of any wiring and not a birds nest affair.

One shouldn't do anything to the axle as the nuts are m12 x 1.25mm, any reduction on axle size is a no. On both drops outs inc the derailleur hanger there is ample material left if one was to remove up to 2mm. The hanger is easy as one can remove it to get a good fit, as long as one does...

What ever you do to the dropouts at least one TA will be required for ali DO's.

I don't need any custom storage or tranportation needs, the boxes I use are ideal and a UK std size for the hive footprint I use and the CF bed I made is ideal for my boxes in tandem.

What is the issue with the hub carrier ?

He means a heat gun like a paint stripper gun, one can use a hair dryer on the hottest setting.

One hasn't come back yet with a charger output voltage. The 50E is a good cell so one likely if only seeing 53.6v needs to speak to the vendor, as it is 1v short. To most 1v might not appear to be an issue, it does mean that somehwere something is not right which one shouldn't be pleased with.

Trace where the wires go, two are obvious and cutting them will only disable the speed sensor so one will not get an odo reading and the other the PAS. The White wire adj to the thick phase wires is the motor Hall wire for the internal speed signal, this tells the odo the speed. The thin...

One can rotate the tabbed torque washer so the tab actually is located at the drop out seat.

In the pics if you zoom closely one can see at the seat area clear daylight/space between the axle and drop out seat bottom, to start with one may gain 1.5mm - 2mm by carefully useing a rat tail file or a dremel tool to gently shape the drop out corner where it meets the side flat to allow the...