Bike Forums - Bottom bracket question.

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sloar

12-27-20 10:20 AM

Bottom bracket question.

My bike has a adjuster cup and lock ring on both sides for some reason. Any reason why I should correct it? Seems to work just fine.

Mr. 66

12-27-20 10:40 AM

If it ain't broke, don't fix it.

I had a MTB that had fixed nds, and adjustable ds. It was the only time I've ever seen that with English threading.

FBOATSB

12-27-20 10:42 AM

Perfect for fine tuning your chain line. Might be standard on cartridge bearings, I don't know.
https://cimg1.ibsrv.net/gimg/bikefor...83f468bf82.jpg

AngryFrankie

12-27-20 11:11 AM

Derp! Misread. I did have Miche like that once. I assumed like someone above, it was to achieve a perfect chainline.

Narhay

12-27-20 11:23 AM

What kind of BB? I'm assuming Italian or French. Maybe english if the threads were damaged and retapped the other way.

I had a mavic threadless BB and it had lock rings on both sides. Otherwise if it works then Bob's your uncle.

Oldairhead

12-27-20 11:30 AM

Quote:

Originally Posted by Narhay (Post 21850372)

Otherwise if it works then Bob's your uncle.

"In 1887, British Prime Minister Robert Gascoyne-Cecil appointed his nephew Arthur James Balfour as Minister for Ireland. The phrase 'Bob's your uncle' was coined when Arthur referred to the Prime Minister as 'Uncle Bob'. Apparently, it's very simple to become a minister when Bob's your uncle!"

I did not know this!

sloar

12-27-20 11:40 AM

Quote:

Originally Posted by Narhay (Post 21850372)

https://cimg7.ibsrv.net/gimg/bikefor...2a589f678.jpeg

sloar

12-27-20 11:43 AM

https://cimg7.ibsrv.net/gimg/bikefor...368b90c6f.jpeg
https://cimg8.ibsrv.net/gimg/bikefor...0c744f3e8.jpeg

dedhed

12-27-20 11:49 AM

A number of cartridge BB came with lock rings on both sides. Suntour VX, Stronglight Spiedel, EDCO to name a few.

Bianchigirll

12-27-20 01:47 PM

Nice bike.

sloar

12-27-20 02:03 PM

Quote:

Originally Posted by Bianchigirll (Post 21850568)

Nice bike.

Thanks

JohnDThompson

12-27-20 06:06 PM

1 Attachment(s)

Quote:

Originally Posted by Narhay (Post 21850372)

What kind of BB? I'm assuming Italian or French. Maybe english if the threads were damaged and retapped the other way.

FWIW, Old SunTour BB cartridges had lockrings on both sides; the English thread version uses a left-hand thread ring on the drive side, color-coded so you don't mix them up:

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