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1. The two connectors are; Black 3 wire pedal assist and white two wire brake cut out. The brake sensor in the lever uses a Reed sensor/switch and one only needs to fit one brake sensor so fit a rear one. Cut off the connector and either use another connector type or simply solder the wires...

Can we see a bigger pic of the battery and the inside.

One can connect the White wire from the external speed sensor connector to the White motor hall wire. The gnd and 5v not needed as the they are both connected via a common rail/track in side the controller and are utilised inside the hub. For speed reading P2 should be value 1 or one can try 6...

They are in my post if one reads carefully.

Although Vespa had long before used single sided hubs, Mike was the first to use them in bicycle design and cannondale pinched the idea.

The halfway has the hallmarks of Mikes input when he was employed as a design engineer for them, though why they didn't go with his earlier 2D design for simplicity. Slim frame design. Leftyfork. Single sided hubs/axles. Mike I believe wasn't estatic by the over heavy engineered finsihed...

Just make sure flecc doesn't have you floating up or down the Loire :eek:.

Starting from bottom of list. Green wires are phase learn wires, if the motor runs rough or backwards join them for controller to learn correct phase sequence. once motor is running , turn off and disconnect them. It may take several tries for the learn to work if not working correctly. ( Note...

One can check the parallel cell groups for volatage to see if one shows up an issue. Also did one look to see if a fuse is present ?

BH have always been quite poor regarding repairs, EPJ of old had issues with his first bike a BH and in the end got rid because of bad CS and poor reliability. Try disconnecting the brake wiring and see if the issue still remaians.

The sensor may still be dirty look to see if there are any metal contacts or magnets visible, a cooton but and isoproponol is good for cleaning. In the link I posted one guy has issue with magnets in the crank which solved his e21 problem.

I saw a kdi about 11 or 12 or so a few weeks ago on the worth way with his dad and sister, he was riding a small e folder. I did mention he was a bit young for the need to use an e bike though his dad said it was the only bike they could find that fitted him, which I thought very strange.

One of the actual battery so we can see if a match elsewhere can be sought, as yet no pic of any battery has been posted bar a part close up one of some spec's.

If you have the motor, then yes only the battery and electronics are needed. KT still stand out as the best non oem controller kit to use. One can also look on topbikekit to compare prices etc, there are afew more kt lcd's to choose from as well. Nothing wrong with buying the battery from china...

For fitting the battery holder one has to fit extra rivnuts ( I don't like doing so as it ruins the appeal of the frame) or use a wolf tooth B-rad mounting rail available from sigma sports, it is an extended frame rail with elongated rail fixings so one can buy 2 ,3 or 4 slot rails. Wolf Tooth...

That use to be before epac's became commercially viable and the 2 stroke motors turned push bike into 30ph mopeds. In a sense probably a trick that was missed at the start with epac's which now is being resisted by most users and the cycling industry as whole in to any benefits that ae to be...

What you get is what someone wishes to pay, we know it works but others won't . The 5000mah /5ah cell used is simply connected in parallel, so for 30ah there ar six in parallel and for 50ah there are ten in parallel.

The capacity matters not , the fact is any mulitple of five in ah and the cells used are the same. One expects it is pot luck with littokala 21700 cells , one may be lucky and get some reasonble cells or one like Billy may be unlucky and get some bad cells.

Ok if you like carrying around a dead weight all the time, but weight adds to range demise and we know SLA give out poor performance compared to lithium. It's horses for courses an dif one is happy with their usage then it is a personal choice. For ebike use it is veyr old low tech but does stil...

The solder points are for the sensor wires and not motor windings, the latter are imbedded elsewhere. As to replacing any dodgy cells, it isn't worth it on an aged battery. One simply can't test cells which are all connected by welded buss bars. All on ecan do is check voltages but even worn...