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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 05-17-08, 06:51 AM   #1
r-bert
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Removing Sugino 75 Bottom Bracket

couldnt find anything on the search function..

i'm trying to take my bottom bracket off, as i need to replace it,
but the fixed cup side is stuck solid, it won't budge at all,
took it to the LBS and they couldnt move it either, anyone got any suggestions,
i'm pretty screwed otherwise.

thanks in advance
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Old 05-17-08, 07:00 AM   #2
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I assume you've got the rest of the bits and pieces removed?

Hose it down with some lubricating oil. Use a hair dryer or propane torch to heat the bottom bracket up a bit, let the oil be drawn into the threads.

Then attack it the Sheldon Brown way - http://www.sheldonbrown.com/tooltips/bbcups.html
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Old 05-17-08, 09:26 AM   #3
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put the wrench flats of the cup in the jaws of a bench vise and turn the frame.....
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Old 05-17-08, 09:57 AM   #4
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Read this thread, it's all there, pictures as well !

Maintain that sexy (or not so sexy) track BB
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Old 05-17-08, 11:36 AM   #5
r-bert
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Read this thread, it's all there, pictures as well !

Maintain that sexy (or not so sexy) track BB

yes, read it, very interesting, lovely pictures too, however not relevent to my problem.
gonna try th vice thing.
thanks for the responses.
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Old 05-17-08, 12:36 PM   #6
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Originally Posted by r-bert View Post
Read this thread, it's all there, pictures as well !

Maintain that sexy (or not so sexy) track BB

yes, read it, very interesting, lovely pictures too, however not relevent to my problem.
gonna try th vice thing.
thanks for the responses.
Whoops ! Sorry didn't read your post properly.

I know it is obvious, but make sure you are turning it the correct way ! The drive side is reverse threaded.
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Old 05-17-08, 01:40 PM   #7
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the makeshift nut and bolt tool on the sheldon link above works as advertised but in my experience it tends to leave marks on the bb cup..
bench vice trick works pretty well..
but it's nice to ahve one of these...
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Old 05-17-08, 01:50 PM   #8
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Originally Posted by tynan View Post
Whoops ! Sorry didn't read your post properly.

I know it is obvious, but make sure you are turning it the correct way ! The drive side is reverse threaded.
hey, no worries,
yeah i thought it was reverse threaded, so have tried turning it both ways,
going to try the vice trick tomorrow, that and some wd40 should hopefully shift it.
cheers
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Old 05-17-08, 02:02 PM   #9
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hey, no worries,
yeah i thought it was reverse threaded, so have tried turning it both ways,
going to try the vice trick tomorrow, that and some wd40 should hopefully shift it.
cheers

Leave the WD40 / GT85 in overnight.
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