JJhey Posted February 23, 2009 Report Share Posted February 23, 2009 Hi i was just wondering if anyone could help me...Yesterday i was riding my bike and all of a sudden i heard a quite loud bang, then before i was riding it and it didn't feel right so i put my bike upside down to see if anything was wrong and i was having a look and i found that my right crank arm would wobble and i have tried tightening it but it just wouldn't work.Please leave a reply saying what it could be n if there is a way to fix it Thanks a lot JJ Quote Link to comment Share on other sites More sharing options...
chrisbikefix Posted February 23, 2009 Report Share Posted February 23, 2009 hello, what cranks and bottom bracket have you got? sqaure tapper of isis? Quote Link to comment Share on other sites More sharing options...
Muel Posted February 23, 2009 Report Share Posted February 23, 2009 Cracked/snapped bb axle is my guess. Quote Link to comment Share on other sites More sharing options...
Jack Chinnery Posted February 23, 2009 Report Share Posted February 23, 2009 Hi i was just wondering if anyone could help me...Yesterday i was riding my bike and all of a sudden i heard a quite loud bang, then before i was riding it and it didn't feel right so i put my bike upside down to see if anything was wrong and i was having a look and i found that my right crank arm would wobble and i have tried tightening it but it just wouldn't work.Please leave a reply saying what it could be n if there is a way to fix it Thanks a lot JJGet an 8mill Andrew key.Undo the crank bolt.See if the crank comes off.If so, take it off and see if the bb moves around.If so, And if you have a bb tool. Take off the bb cup. Check for dirt and shizz. Get a crank extractor and remove the other crank. Take the whole bb out and check it over. If its fecked, Replace it, Seeing as its a t-vee im guessing its a square taper bb. Go on selectbikes.com and get a cheapo one off there.Or if you are really lazy take it to you LBS. Quote Link to comment Share on other sites More sharing options...
onza boy27 Posted February 23, 2009 Report Share Posted February 23, 2009 It happened with mine, just don't ride it get new crank arm. See if it works right then and if it doesn't get a new bottom bracket.Josh. Quote Link to comment Share on other sites More sharing options...
JJhey Posted February 23, 2009 Author Report Share Posted February 23, 2009 thanks a lot for the comments I think I'll try some of the stuff you've said and I think its a square tapper bottom bracket . Quote Link to comment Share on other sites More sharing options...
George.E Posted February 23, 2009 Report Share Posted February 23, 2009 If you are running a square tapered bb then you might have rounded the bb axle, this could have happened if your crank arm was loose and you didn't know.If you can tighten the crank up and it still comes loose then i think you have the same problem i have had in the past.Hope this helps. Quote Link to comment Share on other sites More sharing options...
bigc Posted February 23, 2009 Report Share Posted February 23, 2009 Hi if your running taper bottom bracket it could be two things :the bottom bracket ballbearings have poped or , the square taper that fits in the crank arm has bent a little bit both are quite east to mend . First try and find out what it is thow . Quote Link to comment Share on other sites More sharing options...
Jack Chinnery Posted February 23, 2009 Report Share Posted February 23, 2009 If you are running a square tapered bb then you might have rounded the bb axle, this could have happened if your crank arm was loose and you didn't know.If you can tighten the crank up and it still comes loose then i think you have the same problem i have had in the past.Hope this helps.But if he had rounded it, I should he would have noticed Quote Link to comment Share on other sites More sharing options...
Muel Posted February 23, 2009 Report Share Posted February 23, 2009 Get an 8mill Andrew key.Andrew Key? It's an allen key. The tapers on the crank arm might have been damaged, but round of the tapers on the BB? No chance haha, they're made of hardened steel. Quote Link to comment Share on other sites More sharing options...
JJhey Posted February 24, 2009 Author Report Share Posted February 24, 2009 I checked before to see if anything had been cracked and i found that my BB had been rounded off.How much would you say a new one would cost roughly ?Thanks for the help so far as well Quote Link to comment Share on other sites More sharing options...
Jack Chinnery Posted February 24, 2009 Report Share Posted February 24, 2009 This is all you need. http://selectbikes.com/index.php?act=viewP...mp;productId=29Andrew Key? It's an allen key. The tapers on the crank arm might have been damaged, but round of the tapers on the BB? No chance haha, they're made of hardened steel.It was a joke.Or either Bob key.Allen key is so last week Quote Link to comment Share on other sites More sharing options...
Muel Posted February 24, 2009 Report Share Posted February 24, 2009 It has a name that everyone knows, if you're going to attempt a joke at it at least make it obvious or funny... Quote Link to comment Share on other sites More sharing options...
trials mad Posted February 24, 2009 Report Share Posted February 24, 2009 hi jj hope you get it fixed soon Quote Link to comment Share on other sites More sharing options...
Polish Petee Posted February 24, 2009 Report Share Posted February 24, 2009 (edited) Jack Chinnery is not good at making jokes by the look of it. Edited February 24, 2009 by oldspice Quote Link to comment Share on other sites More sharing options...
Mikey Tomo Posted February 24, 2009 Report Share Posted February 24, 2009 Believe me, once you're validated you will feel like pulling his eyes out with a spoon and then eating them. Also chopping his fingers off one at a time and force feeding them to him until he chokes. Only sometimes though Quote Link to comment Share on other sites More sharing options...
George.E Posted February 25, 2009 Report Share Posted February 25, 2009 But if he had rounded it, I should he would have noticed Yes true I have had it done to mine so, your right Quote Link to comment Share on other sites More sharing options...
lewisrzoo Posted February 25, 2009 Report Share Posted February 25, 2009 I would get isis bb gigapipe is good and some echo cnc cranks.The are a lot more durable. Quote Link to comment Share on other sites More sharing options...
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