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This is the tool for the job, I made my own from a piece of steel tubing. You could try tightening the outer lock nut with a suitable punch. https://www.greenbikekit.com/bafang-8fun-spare-parts/bafang-mid-motor-repair-parts/bafang-8fun-bbs01-bbs02-clutch-lock-nut-spanner-wrench.html

These are a decent alternative, available for 12 and 14mm axle and 3 and 5mm thickness. https://www.ebay.co.uk/itm/144101514667?hash=item218d1e9dab:g:7eMAAOSwFOBfj~Wa

Great bike Zelige, best looking Raleigh 20 i've seen.

I'm sure i've read on here that the Brainpower controller runs sensored and sensorless, so you should be OK.

The motor is running in reverse, reconnect the (green)self learning wires and disconnect them when the motor runs the right way. Make sure the gap on the PAS sensor and disc is 1mm.

Unless stated parts will fit all versions of BBS01/02/A/B. If in doubt, ask before you order.

I've just replaced the PAS sensor and magnetic disc on my BBS drive. I used GreenBikeKit, very good prices on Bafang parts and dirt cheap postage (£6). No VAT added to order and nothing to pay this end. Took around 2 weeks to arrive...

This battery will work well with your setup and will give the range you require, 18 month warranty and shipped from UK, so no duty/VAT to pay. I've been inside a couple of Yosepower packs and they are well constructed. You need to add £100 for shipping from BMS + 20% VAT on total...

In reality throttles do not often fail, but you'll be glad you have one if the worst happens. It's also handy when doing low speed maneuvers.

It's fine to run without brake cut off's if you only run with PAS, but best to fit them if you have a full speed throttle fitted to your bike. If the throttle malfunctions, which can happen, you will then have to brake against full motor power, which could be very dangerous and will blow your...

You don't need those 1.p's on your case because they will come fitted to your new battery, simply bolt them in place. Your charger and bike (controller) leads will then plug into them.

Well that was a waste of 7:58 of my life. I wonder if Bosch taught him how to use a hammer and screwdriver:D

Not sure what happened to my post, anyway, I'm thinking that maybe your final drive gear is not fully pressed into the Lekkie cover bearing and is fouling on the main casing or poss. a duff bearing. I have my drive apart at the moment to replace a broken PAS disc and i don't seem to have the...

Yes, you have most likely blown the BMS board in the battery and your controller I'm afraid. Depending on your soldering abilities, the BMS is replaceable, so the battery should be saveable.

Precialps used to make a double chainring for the Bafang motors, but I'm sure it's been discontinued. You could have a manual change setup with an adapter, just ride with a disposible glove on your RH, :)but I'm not sure you can get chainwheels over 52T in 104bcd...

60T is quite a jump, just be wary of keeping the motor speed up when climbing, otherwise you will blow your controller. How many teeth do you have on your highest gear on the rear?

Sorry, those chainrings bolt on direct to the motor, so no adapter needed, but will fit all bbs01/02. Note they are flat, so no offset which may change your chainline.

Yes, they both use the same chainwheel adapter. Not sure what adapter you have, but I'd be careful going too big on the chainring as some of the adapters are pretty poor quality.

Why the new thread? I tried to help you on the last one. Try the one in SW's link, should be fine.;)

Looks OK and as long as it is properly heat treated, should do the job. That one is for the BBSHD motor and does not have the same offset as the Bling Ring, maybe 1-2mm more than the standard Bafang chainwheel.