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ro-LAND Mash, the same thing happened to me. I thought that the crank had just got loose, and retightened it. From that point on, it would loosen very quickly.
Basically I had worn down the 'square' on the BB so that needed to be replaced. The crank arm is now my office paperweight...
So, just to check. will I need a new BB, or just a new crank arm.?
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xroads Riding a loose crank, can butcher it. If the taper square looks butchered on the crank, I would replace it, as the extra play will cause it to loosen itself. Always a good idea to tighten crank bolts, especially when new, as they tend to loosen.
How would it look if it were 'butchered'? Mis-shapen or mis-aligned or something?
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Thanks for the responses guys - except you Dale :-)
So, the crank / BB were bought new with the bike, from Condor, so there shouldn't be a mismatch.
It's about one year old - not sure it should have become butchered in that time? I will ride it home very gingerly and then get a crank extractor tool and see what I can see.
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So, I have a bit of a problem:
Last week on my commute home I noticed that my right pedal stroke felt a bit 'loose'. I put it down to my cleat needing tightening and looked at it when I got back. It seemed that the main crank bolt, into the BB, had started to come undone. Thinking to myself "I'm sure that's not meant to happen", I cycled it over to a friend's house. On the way there, it got a LOT looser. Dangerously so, kinda hanging and wobbling, loose. Of course, I decided to tighten it up as much as possible and hope that nothing was REALLY broken.
This morning it started coming loose again. Damn.
So, it seems that something is properly broken - what should I be checking?
I am now realising that if I'd built my own bike, I'd know how all these bits hang togeter...
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Slack i saw Mashton in john snow on friday, well at least i think it was him having never met him fo sho' and i saw Pistanator and his very nice velos on saturday as i carried off a pair of wheels..
Nah, not me - I was on my way to a disastrous weekend in Amsterdam. I wonder if I have a doppleganger?
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Maybe we should be able to nomiate people for deletion. If enough users (all with a minimum post count maybe) vote for it then we get to bin the user.
It could be like big brother. We could have a daily eviction.
God, as I typed that I began to hate myself. I may end up speding my dotage in a Gentlemen's club which doesn't admit women or people who play golf.
Help.
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@jonny: looks like I'm going to be in a meeting over in Hammersmith anyway. I'll see you at the pub. :-)
Search the threads. This has been covered and covered.
And, no.