Nick Melson Posted March 9, 2009 Report Share Posted March 9, 2009 (edited) What might have caused this??Its exactly the same both sidesNick Edited March 9, 2009 by Nick Melson Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted March 9, 2009 Report Share Posted March 9, 2009 Uneven/overtightening, probably Quote Link to comment Share on other sites More sharing options...
Jamie_Trials Posted March 9, 2009 Report Share Posted March 9, 2009 any chance you cut your forks?my stem snapped yesterday because of that Quote Link to comment Share on other sites More sharing options...
Nick Melson Posted March 9, 2009 Author Report Share Posted March 9, 2009 Uneven/overtightening, probablyHmm not to sureAs i have only had the bike since mondayBought it from georgieporgie on hereSo i dont know Quote Link to comment Share on other sites More sharing options...
Cookyboy Posted March 9, 2009 Report Share Posted March 9, 2009 Prob uneven overtightening, is it try all? im guessin it is! Quote Link to comment Share on other sites More sharing options...
Nick Melson Posted March 9, 2009 Author Report Share Posted March 9, 2009 Prob uneven overtightening, is it try all? im guessin it is!Yeahh its try-all the one with the sloping topcap Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted March 9, 2009 Report Share Posted March 9, 2009 Is that the steerer tube I spy? if so I would have said it's the bloody great slot that looks like it has been hacked out of the stem myself, when you do this sort of mod you need to ensure you have not put any flaws in the structure especially with cast components such as sharp corners etc.You should be able to mend that quite easily with a small hot flame, like a precision plumbers torch or oxxy feul with a small tip, just make sure you clean off ALL paint and other contaminants in an area about 1 inch all round the crack.Be carefull not to overheat because when welding aluminium with oxyfuel it doesn't look like it is melting, heat it too much and it will collapse.Or just bin it and get another, a stem is one thing you really don't want to let go at the wrong time!Matt Quote Link to comment Share on other sites More sharing options...
Bionic Balls Posted March 9, 2009 Report Share Posted March 9, 2009 Is that the steerer tube I spy?it's designed like that..You should be able to mend that quite easily with a small hot flame, like a precision plumbers torch or oxxy feul with a small tip, just make sure you clean off ALL paint and other contaminants in an area about 1 inch all round the crack.Be carefull not to overheat because when welding aluminium with oxyfuel it doesn't look like it is melting, heat it too much and it will collapse.hmmm...doesn't seem so easy! it still needs to be flush inside where it sits against the steerer...so i can see another crack probably starting again from the steerer side where you might not catch it so easily...tis a strange place for a crack though.Or just bin it and get another, a stem is one thing you really don't want to let go at the wrong time!good shout. Uneven tightening may have caused it...perhaps even riding with one bolt loose(ish) meant that the stem could move slightly and thats some sort of fretting crack? unlucky i'd say.adam Quote Link to comment Share on other sites More sharing options...
Cookyboy Posted March 9, 2009 Report Share Posted March 9, 2009 Yeahh its try-all the one with the sloping topcapthere terrible stems anyway! i cracked 2 right on the weld where the steerer clamp is attched to the rest of the stem in about 5 months! Quote Link to comment Share on other sites More sharing options...
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