Tsia Posted January 23, 2011 Report Share Posted January 23, 2011 (edited) Right, I'm very new to this so don't laugh It feels like my chain is "jumping" as I'm riding. It's not at a certain point in the pedalling motion, it's completely at random. This is how the tensioner came set up after I bought the bike, but is it correct? If it is, what could be causing the jumping? Edit : Reason I ask is because it sits so little of the chain on the first jockey wheel Edited January 23, 2011 by Tsia Quote Link to comment Share on other sites More sharing options...
Revolver Posted January 23, 2011 Report Share Posted January 23, 2011 You really need to set it closer to your chainstay. If you can do that by undoing that bolt then great, else, shorten your chain by a link or so. Quote Link to comment Share on other sites More sharing options...
Tsia Posted January 23, 2011 Author Report Share Posted January 23, 2011 Just the answer I was looking for, thanks. I'll have to take it into work tomorrow to drop out a link, as it hasn't got enough adjustment in that arm. Quote Link to comment Share on other sites More sharing options...
Revolver Posted January 23, 2011 Report Share Posted January 23, 2011 Is that first arm sprung then? Quote Link to comment Share on other sites More sharing options...
Tsia Posted January 23, 2011 Author Report Share Posted January 23, 2011 See : exhibit number 2 Unfortunately, the entire thing moves as one piece, even the second "arm" moves with it, as it's as far back on it's spring as it can get. Quote Link to comment Share on other sites More sharing options...
Ben John - Hynes Posted January 23, 2011 Report Share Posted January 23, 2011 Surely that works now!? Set the tensioner up as close to the chainstay as you POSSIBLY can without the chain on, then replace the chain after it's set up. Quote Link to comment Share on other sites More sharing options...
Revolver Posted January 23, 2011 Report Share Posted January 23, 2011 Yes, as it's set up in that second picture, that's right and good, unless your chain is still flopping around, in which case, take some out. Quote Link to comment Share on other sites More sharing options...
Tsia Posted January 24, 2011 Author Report Share Posted January 24, 2011 It was flopping around, in the second picture, the chain is very loose. Quote Link to comment Share on other sites More sharing options...
ogre Posted January 24, 2011 Report Share Posted January 24, 2011 you need to jack up the tension in the spring, if you loosen off the bolt at the end of the arm, (that clamps the bar the sprung part is attached to) and take out the bolt that holds the tensioner in place, turn the main arm anti-clockwise, and tighten it. que paint diagram: you will need to play with how much you turn the arm, if you turn it too much it'll be to much stretching for the spring and it goes weak. it will reduce chain wobble loads and give you better tension Quote Link to comment Share on other sites More sharing options...
Al_Fel Posted January 24, 2011 Report Share Posted January 24, 2011 ^Clockwise. You need to get the arm to spring downwards when you push it up to tension the chain. Quote Link to comment Share on other sites More sharing options...
ogre Posted January 24, 2011 Report Share Posted January 24, 2011 no you turn it anticlockwise, so once the bolts tightened up again you have to turn the arm clockwise to line it up with the mech hanger, then it jacks up the tension Quote Link to comment Share on other sites More sharing options...
Tsia Posted January 24, 2011 Author Report Share Posted January 24, 2011 (edited) Thanks, will test tomorrow (way too early in the morning at the moment) ! Edited January 24, 2011 by Tsia Quote Link to comment Share on other sites More sharing options...
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