Fishy Posted April 10, 2006 Report Share Posted April 10, 2006 (edited) Right, I have just set up a single speed conversion, and I've found a few problems with it,1) The chain slips if I pedal kick hard.2) The lock-ring keeps coming loose even though I tighten it hard.3) When I pedal backwards the freewheel doesn't move. If that makes sense. So the chain becomes loose.4) And also can some one give me some advice on how to true my wheel, tryed and failed miserably .Any help is appreciated.ThanksjOe Edited April 10, 2006 by Joe Rothwell Quote Link to comment Share on other sites More sharing options...
Jsy Ben Posted April 10, 2006 Report Share Posted April 10, 2006 1) The chain slips if I pedal kick hard. erm i think thats to do with chain alignment, basically your rear sprocket isnt inline with your front chainring 2) The lock-ring keeps coming loose even though I tighten it hard. erm not sure maybe abit of plumbing tape (thin white tape) around the threads ?! but this problem might somehow be related to the next problem wait for someone in the know to answer...3) When I pedal backwards the freewheel doesn't move. If that makes sense. So the chain becomes loose. dunno4) And also can some one give me some advice on how to true my wheel, tryed and failed miserably .tighten spokes coming from the left of the hub means the rim will move to left, vice versa. Tightening three spokes in a row will make a big difference to the buckle, maybe try tightening two spokes in a row first just experiment really...erm thats as brief as i can put it. Quote Link to comment Share on other sites More sharing options...
Fishy Posted April 10, 2006 Author Report Share Posted April 10, 2006 Thanks a lot, this had been pissing me off for ages. About the trueing, if my wheel is like all over the place, ie wobbly as fook, would i need a wheel jig to get it perfectly straight? Quote Link to comment Share on other sites More sharing options...
tipsy Jock Posted April 10, 2006 Report Share Posted April 10, 2006 Thanks a lot, this had been pissing me off for ages. About the trueing, if my wheel is like all over the place, ie wobbly as fook, would i need a wheel jig to get it perfectly straight?Nope, the best way i find is to use your brake pads, and slowly move them in as you take out the buckles. wont do anything for dishing the wheel but it'll be nice and true Quote Link to comment Share on other sites More sharing options...
Fishy Posted April 10, 2006 Author Report Share Posted April 10, 2006 Nope, the best way i find is to use your brake pads, and slowly move them in as you take out the buckles. wont do anything for dishing the wheel but it'll be nice and true Thanks loads, does anyone know whats happening with my chain? When I pedal backwards it goes slack, and my hub doesn't turn around, kind of. It's hard to explain.Would the positioning of my tensioner make a huge difference? I mean, would it have to be like almost perfect, than it would than say, on a dj bike? Quote Link to comment Share on other sites More sharing options...
Krisboats Posted April 10, 2006 Report Share Posted April 10, 2006 What hub is it? My old dmr one was the same... the sure for that was to spray wd-40 or gt85 where the freehub joins the edge of the hub shell it allowed it to spin more freely and subsequently stopped the whole chain going slack problem... however, this only ever happened when i had a new freehub fitted to it so if it is an old hub it would most likely be that a part has broken inside it maybe a bearing or pawl spring or maybe even a piece of grit has gotten inside. If you let us know what hub it is it would be likely that someone will know how to fix it. Quote Link to comment Share on other sites More sharing options...
Fishy Posted April 10, 2006 Author Report Share Posted April 10, 2006 (edited) It's a dmr revolver cassette hub, but it has a unbranded single speed kit on it, thanks for the help people.I've found a few more problems... 1) I've snapped my chain2) I've been riding on a snapped axle Edited April 10, 2006 by Joe Rothwell Quote Link to comment Share on other sites More sharing options...
Krisboats Posted April 11, 2006 Report Share Posted April 11, 2006 Thats £15 for your axle then, they're not very strong at all though so i'd recommend you putting the money towards a new hub. These hubs don't really work on a snapped axle like some others can because i found the rim kept hitting the pads everytime i pedalled, but you might be able to temporarilyIf a new hub is out of the question then what you need to do with your axle is go to the dmr site and have a look for a dmr retailer near you, they will replace the axle for you so all you have to do is take it in to them and they'll do all the hard work for you. Quote Link to comment Share on other sites More sharing options...
dave85 Posted April 11, 2006 Report Share Posted April 11, 2006 The not freewheeling problem may be down to the SS spacer kit. If its not long enough then it allows the lockring to rub on the bearings/seals/whatever inside the freehub. That could also be causing the loosening. One of the 0.5mm freewheel thread spacers on the cassette body does the trick nicely.If the tensioner is a simple single wheel one and you're tensioning by pulling the chain downwards, that can also cause the chain to skip as there isnt as much contact around the sprocket as there should be.Best way to true a wheel is get one from the scrapyard and play about with it for a few hours, that way you're not bothered if you trash it. Quote Link to comment Share on other sites More sharing options...
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