Help - Lock ring nut.... again

[Flog]

Hi All
I know this has been on the forum before but can anyone help me track down the lock ring nut pointed at in the photo? Its on Jam2 6.8 2020 / Bosch motor. At the moment, three bike shops that I have contacted don't stock and seem very unwilling to get in to a conversation to order one in for me. I thought I had bought at Wiggle but way to big.

Lockring for Cog Mounting of Active, Performance and

Buy your Bosch Lockring for Cog Mounting of Active, Performance and - Electronic Gear Spares from Wiggle. Our price . Free worldwide delivery available.

www.wiggle.co.uk

and the socket fitted it like a glove (but of course too big). (what do these fit and does anyone want??)

I've cleaned and added loctite to it which lasted 4 or 5 miles yesterday - HELP PLEASE

 

[Aitrui]

I didn't find any online shop who has it in stock in EU for gen4 engines. I ordered 4 pcs from my local Bosch ebike dealer like two weeks ago, phoned them today, still not arrived.

The bosch part number is: 1270014085 ,there are different versions as I know, but most of the manufacturers use this, you can check the part number on it.

Of course now I found it, You can order this from Italy, one seller has it in stock.

Click for the ebay link here

 

[Flog]

Thanks for that, with the part number I have now found in UK. I don't suppose you know what the tool number is?

 

[Aitrui]

I don't know the oem bosch tool part number, but it's the same as for the gen3 motors, so maybe you can find that way in the UK.

Link for Gen3/4 lockring tool

 

[Flog]

Got it! You are a star. thank you. Last one, do I need any O rings? Think it mentioned on the thread before??