Billiboi Posted July 16, 2009 Report Share Posted July 16, 2009 Hi all, as above really, how do you remove a sprocket? can you remove a sprocket?Its a trialtech 18 tooth on a crank, i cannot shift it at all!!!, Thanks for any helpBilly Quote Link to comment Share on other sites More sharing options...
Muel Posted July 16, 2009 Report Share Posted July 16, 2009 Wrap an old chain around it, put the chain in the vice, tighten it up mega tight, put a pipe over the crank arm and undo it.Or put the crank arm in the vice and use a chain whip. Quote Link to comment Share on other sites More sharing options...
forteh Posted July 16, 2009 Report Share Posted July 16, 2009 Wrap an old chain around it, put the chain in the vice, tighten it up mega tight, put a pipe over the crank arm and undo it.Or put the crank arm in the vice and use a chain whip.Heres one I drew earlier http://www.trials-forum.co.uk/forum/index....st&id=29578 Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted July 16, 2009 Report Share Posted July 16, 2009 I have a 2.5 ft chain whip for this and it can still be a struggle.It took me and a mate about half an hour to remove a bloody ENO from a crank the other day.He is about 6ft and big and I do up/undo 2" andd bigger bolts on a regular basis (Thats 2" diameter to the numpties out there)It is amazing how tight these things get, I also had to take a viz freewheel off today and I had to literally jump on the spanner to undo it.Matt Quote Link to comment Share on other sites More sharing options...
gussie Posted July 16, 2009 Report Share Posted July 16, 2009 (edited) What about putting to bits of wood in the vice then the sprocket between them so it digs in. Then put something on the end of the crank and turn?Edit: might be easier as it will hold the crank still? Well it will give it a fixed pivot point rather then being able to move like the chain in vice method? Edited July 16, 2009 by gussie Quote Link to comment Share on other sites More sharing options...
Al_Fel Posted July 16, 2009 Report Share Posted July 16, 2009 What about putting to bits of wood in the vice then the sprocket between them so it digs in. Then put something on the end of the crank and turn?Edit: might be easier as it will hold the crank still? Well it will give it a fixed pivot point rather then being able to move like the chain in vice method?The teeth with rip though the wood like a knife through butter. I've seen a sprocket rip though mild steel pegs like it was nothing too.The best way to do it would be the chain in a vice job but stick a nail or something through the end so the chain can't pull out of the vice and remember leverage is the key. Quote Link to comment Share on other sites More sharing options...
CC12345678910 Posted July 20, 2009 Report Share Posted July 20, 2009 eh hmm. This is in the wiki http://www.trials-forum.co.uk/forum/index....showtopic=94909 Quote Link to comment Share on other sites More sharing options...
Mike W Posted July 20, 2009 Report Share Posted July 20, 2009 Blowtorch is a winner, there easy to get off Quote Link to comment Share on other sites More sharing options...
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