Bottom bracket

[Daftlad]

Hi all.
I have been looking for a new bottom bracket for my unknown brand bike and am really struggling.
It is 150mm by 68mm and totally symmetrical.
I guess it is so long so the pedals don't hit the battery which is stored behind the seat.

Any ideas?

Thanks in advance and sorry if it is a dumb question!

 

[trex]

e-bikes with battery behind the seat post usually need long bottom bracket spindle, such as the ones with cup and cone.

http://www.sjscycles.co.uk/shimano-deore-dx-bb-mt60-68mm-shell-english-thread-square-taper-bottom-bracket-1225mm-prod31710/

 

[Daftlad]

Indeed.
The longest I have found on tinterweb is 130 mm and it isn't symmetrical.
Will keep looking.....

 

[trex]

these BBs last a very long time, only need cleaning and regrease. If the caged balls show corrosion (pitted surface), you can replace just the ball cages.
If you are stuck, email woosh, I think they have what you need.

 

[Daftlad]

Will do, thanks for that.

 

[Daftlad]

Forgot to say,
The quality really is poor, the bearings and cups are OK but the Axel looks like it is made from something pretty soft as it is actually deformed and creating swarf where the bearings run, and it was correctly adjusted!

 

[anotherkiwi]

...and it came from China and you bought it chez Leclerc... Their slogan is "we are the cheapest" not "we are the best".

 

[Chainring]

Hi all.
I have been looking for a new bottom bracket for my unknown brand bike and am really struggling.
It is 150mm by 68mm and totally symmetrical.
I guess it is so long so the pedals don't hit the battery which is stored behind the seat.

Any ideas?

Thanks in advance and sorry if it is a dumb question!

Did you ever get this problem sorted? Juicy bikes do a bottom bracket, in their spares department. I got mine from there, but it's not symmetrical. It's done me 4500 miles, but I am only just working on getting the chainline exactly right!
https://www.juicybike.co.uk/ebike-aftercare/juicy-bike-parts/bottom-bracket

 

[Deleted member 4366]

OP needed a 150mm one. They're hard to find.

 

[Chainring]

OP needed a 150mm one. They're hard to find.

Well, the one I received is 150mm long. Not sure of the shell width, as it's screwed into the bike. The bottom bracket shell width of the bike itself is 80mm.