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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Euro BB installation
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Author Topic: Euro BB installation  (Read 516 times)

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funkwit

  • Guest
Euro BB installation
« on: October 25, 2007, 12:22 PM »
I am trying to install a Profile euro BB into my CW mini frame, but I can't seem to get the cups to screw in. One of the cups has a little groove etched into the lip, and I'm assuming that this marks it as the drive-side cup. Can anyone confirm that this is the correct assumption? If it is the correct cup for the drive-side, what direction should I be trying to screw the cup - clockwise or anti-clockwise? I've heard that the drive-side uses a left-handed thread but I'm not sure what that means in terms of the direction the cup should be screwed. Or the direction that the non drive-side should be screwed for that matter. Can anyone help me? Please....

Thanks
Marc

Offline se-bmxer

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Re: Euro BB installation
« Reply #1 on: October 25, 2007, 12:31 PM »
I think you'll find that the drive side screws in clockwise so that when your pedalling its not going to come loose,
the other if ya looking at it goes anti-clockwise so when you look at it both threaded cups are turning towards the
front wheel, this is with the bike on its wheels.

Correct me if im wrong

SaMAlex

  • Guest
Re: Euro BB installation
« Reply #2 on: October 25, 2007, 12:37 PM »
Thats how I remember it. Both cups tighten up, by screwing towards the front of the bike (when the bike is the right way up).


(But its been a few years since i did a euro BB so that might be the other way round)

funkwit

  • Guest
Re: Euro BB installation
« Reply #3 on: October 25, 2007, 12:51 PM »
Cool, thanks guys!

Frosty

  • Guest
Re: Euro BB installation
« Reply #4 on: October 25, 2007, 01:02 PM »
Also don't force it if they dont just run in nice ans smooth. I know on the mrd mini I had to get the threads run through again at a local bike shop as the original threads whilst NOS weren't quite clean enough!!

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