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From: AMuzi <am@yellowjersey.org>
Newsgroups: rec.bicycles.tech
Subject: Re: stuck BB idea
Date: Wed, 19 Feb 2025 16:17:56 -0600
Organization: Yellow Jersey, Ltd.
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On 2/19/2025 3:45 PM, Zen Cycle wrote:
> On 2/19/2025 3:25 PM, Mark J cleary wrote:
>> I have this FSA BB that is stuck on the drive side cup. 
>> That would be a reverse threaded external BB.
> 
> Sorry if this is a dumb question, but you're sure it's 
> reverse threaded?
> 
> 
>   It has been on the indoor trainer and
>> actually works but I want to get a new R7000 crankset.
>>
>> I have tried the usual BB tool but it will not budge and I 
>> chewed the outside of the notches trying. So now my 
>> thought is get a hose clamp and put it around the BB cup. 
>> Then get it really tight. Then take a large pipe wrench 
>> and set it up to grab the clamp threading as a point of 
>> pressure and give it the big turn.
>>
>> What do you thing of this idea. I don't try getting some 
>> penetrating oil in around too much work. I just want to 
>> give this one big swipe with the pipe wrench. If the frame 
>> goes south doesn't matter.
> 
> 

Good point.
The Habaneros are all BSC.  The early Italian built LeMond 
maybe not but Lemonds that I've worked on were BSC.

Outboard cups are generally well marked. OP ought to double 
check that.

-- 
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971