A primitive but effective method of stopping lock rings coming undone on old British motorbikes was to use lock wire so it physically could not come undone.

Thanks . . but this particular locking ring is large diameter, and not much 'meat' to it, and not easy to access either, so I don't think it will be possible . . but thanks for the idea anyway

I would have loved to try a gear-change-sensor, but there is no way on my particular motor, or in the controller box, to plug one in.

I think it may be an early model, before it was improved.

 

Like I said, I don't know anything about the M510 - would this work? Or would it brick your controller? Might well be worth asking the company which gave you the bike.

 

https://www.aliexpress.com/i/1005004297494351.html

 

Edited December 31, 20232 yr by guerney

I would have loved to try a gear-change-sensor, but there is no way on my particular motor, or in the controller box, to plug one in.

I think it may be an early model, before it was improved.

They plug into the brake connectors.

Like I said, I don't know anything about the M510 - would this work? Or would it brick your controller? Might well be worth asking the company which gave you the bike.

I already asked then that question, and also Bafang, and they said no available connectors in that particular motor

They plug into the brake connectors.

Haha . . it gets worse, as it doesn't have brake cutout switches, maybe because it was a prototype

Haha . . it gets worse, as it doesn't have brake cutout switches, maybe because it was a prototype

That's weird. I never heard about that before. What about the cable that runs from the motor to the LCD? How many pins does it have at the motor end? Maybe you have a special cable that can be replaced.

That's weird. I never heard about that before. What about the cable that runs from the motor to the LCD? How many pins does it have at the motor end? Maybe you have a special cable that can be replaced.

Yep . . very weird indeed . . we have looked at all of the cables and plugs and nothing there to connect to

I think because the eBike was a prototype, and it was an early Bafang motor, they didn't consider those options.

At least the noise has gone, so I can enjoy riding again

Yep . . very weird indeed . . we have looked at all of the cables and plugs and nothing there to connect to

I think because the eBike was a prototype, and it was an early Bafang motor, they didn't consider those options.

 

I was hoping we'd see [mention=3847]saneagle[/mention] help you identify the functions of the pins, and if possible, guide you through retrofitting brake cutouts and a gear sensor. I'm disappointed, but I expect I'll get over it.

Edited December 31, 20232 yr by guerney

I was hoping we'd see @saneagle help you identify the functions of the pins, and if possible, guide you through retrofitting brake cutouts and a gear sensor.

I really don't think it's possible on the beast which I have without extensive work, and maybe that early Bafang motor doesn't have the option, so I've learned to live with it, and just enjoy riding it within its limitations . . and at last . . No Noise from the motor

I really don't think it's possible on the beast which I have without extensive work, and maybe that early Bafang motor doesn't have the option, so I've learned to live with it, and just enjoy riding it within its limitations . . and at last . . No Noise from the motor

...and broken gear teeth!

... and broken gear teeth!

<No Name> Rear Cassette replaced when it happened very early on with a stronger Shimano gear cassette, so no problems with broken teeth in the last 800 miles, thank goodness, despite the harsh gear changes which still happen under power, for example when climbing an incline when you don't wish to ease off and slow down to make the gear-changes

Hi when you took the motor apart did you have to replace the gasket? What did you use to open the motor up?

Hi when you took the motor apart did you have to replace the gasket? What did you use to open the motor up?

Hi . . I didn't need to replace the gasket, as I opened it carefully, and the gasket was fine I just carefully removed all of the bolts, and then used a screwdriver and hammer to gently separate the main cover, as shown in this video -

Hello again, can you advise on a lockring tool to remove the chainring it has 8 notches. Thanks

Hello again, can you advise on a lockring tool to remove the chainring it has 8 notches. Thanks

You can use a hammer and screwdriver, hinged or fixed C-spabber or take a normal socket with the right diameter and use an angle grinder to grind the castellated shape - two or 4 lugs should be enough.

 

Or one of these:

https://vi.aliexpress.com/item/1005005398258737.html?src=google&src=google&albch=shopping&acnt=494-037-6276&slnk=&plac=&mtctp=&albbt=Google_7_shopping&albagn=888888&isSmbAutoCall=false&needSmbHouyi=false&albcp=17866089788&albag=&trgt=&crea=en1005005398258737&netw=x&device=c&albpg=&albpd=en1005005398258737&gad_source=1&gclid=Cj0KCQiA5rGuBhCnARIsAN11vgR6L9Xicz6wjr54Z_BKtnR4N3fYIi-MBw5vFlwVk7PfA_7mH6GSgk0aAkPOEALw_wcB&gclsrc=aw.ds&aff_fcid=a317e700ed9047569a8a59338a78edc5-1707915715348-08757-UneMJZVf&aff_fsk=UneMJZVf&aff_platform=aaf&sk=UneMJZVf&aff_trace_key=a317e700ed9047569a8a59338a78edc5-1707915715348-08757-UneMJZVf&terminal_id=ac583474948d44ed973aa732a0998e4f&afSmartRedirect=y

Hello again, can you advise on a lockring tool to remove the chainring it has 8 notches. Thanks

Hi SparkyB . . I used a screwdiver and hammer to remove it, by tapping on the outer circumference, but obviously didn't do it up quite tight enough when I reassembled, hence the clicking noise coming back after a while.

So I took it into my local bike shop, where they put a proper sized socket onto that 'nut' and torqued it up tightly

Hello again, can you advise on a lockring tool to remove the chainring it has 8 notches. Thanks

This is the item / socket that [mention=3847]saneagle[/mention] was recommending