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George:D
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Post subject: chain tension keeps changing when cranks turn  Posted: Sat Jul 25, 2009 1:15 pm |
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| Barracuda |
Joined: Thu May 07, 2009 6:21 pm
Posts: 3
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Hi just got my 24 seven slacker really pleased with it but took it down the track the other day and after a while something went wrong. Now whenever I turn the cranks they get all stiff at one point and the chain tension gets tighter. Is it the bb axle or sprocket. anyone know how to fix it or had this problem 
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Nato parsons
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Post subject: Re: chain tension keeps changing when cranks turn Posted: Sun Aug 02, 2009 9:21 am |
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| GT STS |
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Joined: Mon Apr 27, 2009 10:44 pm
Posts: 45
Location: Warwickshire
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Yeah i used to get that tightening on my 24 seven, think its to do with the bolt that holds the chainring on the cranks, try taking them off and making sure it all squares up. If its not that maybe its the bearings in the sprocket in your rear hub. Are you running all 24 seven parts?
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George:D
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Post subject: Re: chain tension keeps changing when cranks turn Posted: Sun Aug 02, 2009 11:10 am |
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| Barracuda |
Joined: Thu May 07, 2009 6:21 pm
Posts: 3
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i took the cranks off and the axle in the bb out.i don't think the axle is bent.then i took the sprocket off and it is really worn down around the hole in the middle. would this be the problem?
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Matt
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Post subject: Re: chain tension keeps changing when cranks turn Posted: Mon Aug 03, 2009 1:46 pm |
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| GT STS |
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Joined: Mon Apr 06, 2009 11:41 am
Posts: 46
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The chainring must be perfectly central when you tighten it up on the cranks otherwise it will cause the chain tension to be tight then loose.
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George:D
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Post subject: Re: chain tension keeps changing when cranks turn Posted: Mon Aug 03, 2009 4:33 pm |
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| Barracuda |
Joined: Thu May 07, 2009 6:21 pm
Posts: 3
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Jus trying to put the bike back together and now i can't get the driveside crank arm off. i know its missing that little plug thing that the screw screws in to but i have taken the arms off a few times before no worries and the arm just gently pulled off. anyone got any ideas on how to get it off.also will the track be done by the weekend was gonna come up with some mates if i can sort my crappy crankset out.
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