SAMWELL Posted November 18, 2010 Report Share Posted November 18, 2010 Hey guys Hope someone can help me. Ive recently moved towards rear freewheel and have aquired a back wheel with a tensile 60 click freewheel on. The last owner said it never skipped and was regulary serviced and has had one recently. It is used though, but seemingly not very much. Ive fitted my new KMC Kool and a tensioner and shortened the chain as much as I can to get the best chain wrap. Initially I didnt shorten it enough and the chain wrap wasnt too good. The chain skipped off the freewheel a few times just light pedaling. So now Ive shorted it as much as I can (see pictures) and on the very odd occasion it skips whilst pedaling, not when kick-hopping though. If I put a lot of pressure in, it sounds like the chains grinding against something, like the freewheel and if I carry this on, it skips and the chain/pedals jump forward a bit. When I held the freewheel and spun the wheel, I cant feel any notches so it APPEARS the freewheels ok... but Ive got better chainwrap on this than my older setup (but that was a different bike) Can you techies look at the piccies and give me your humble opinion? Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted November 18, 2010 Report Share Posted November 18, 2010 Fit the tensioner so it pushes the chain up rather than down. Not enough chain wrap imo. Quote Link to comment Share on other sites More sharing options...
l33th3tr33 Posted November 18, 2010 Report Share Posted November 18, 2010 Can't you shorten the chain even more and run a spoke tensioner? Quote Link to comment Share on other sites More sharing options...
Mikee Posted November 18, 2010 Report Share Posted November 18, 2010 Do you have an old mech you can use as a tensioner so you get beeter wrap? Quote Link to comment Share on other sites More sharing options...
Franksx2005 Posted November 18, 2010 Report Share Posted November 18, 2010 Fit the tensioner so it pushes the chain up rather than down. Not enough chain wrap imo. what he said! Quote Link to comment Share on other sites More sharing options...
SAMWELL Posted November 18, 2010 Author Report Share Posted November 18, 2010 Fit the tensioner so it pushes the chain up rather than down. Not enough chain wrap imo. Really? I will give it a go, but its a cheap tensioner and not sure itll swing that way happily. Im really confused at how my other setup is fine and has even less wrap but absolutely no skippage at all. Will try that though! Cheers! Quote Link to comment Share on other sites More sharing options...
JD™ Posted November 18, 2010 Report Share Posted November 18, 2010 Could it not be about the chain line as opposed to wrap? If the chain isn't running straight you'll maybe get the symptoms you're talking about? Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted November 18, 2010 Report Share Posted November 18, 2010 I agree with that also but there clearly isn't enough wrap there. I havn't used one o those tensioners in years i seem to remember them being Kak but worked better the other way anyway. I think I may have taken the spring out and turned it around or swapped it for one from a u brake, that made it work better. Quote Link to comment Share on other sites More sharing options...
SAMWELL Posted November 18, 2010 Author Report Share Posted November 18, 2010 Could it not be about the chain line as opposed to wrap? If the chain isn't running straight you'll maybe get the symptoms you're talking about? Chain line is dead straight, dead straight to chainring and on the tensioner... Im kinda hoping right now it IS the tensioner! Quote Link to comment Share on other sites More sharing options...
Luke Dunstan Posted November 18, 2010 Report Share Posted November 18, 2010 I had a Trialtech fixed tensioner with pretty much the same amount of wrap, and it skipped loads, went to the sprung one, and it works a treat. Quote Link to comment Share on other sites More sharing options...
N.Wood Posted November 18, 2010 Report Share Posted November 18, 2010 A double wheeled tensioner (Try-All/Tensile if on a budget, Rohloff if you wanna spend the dollar) will do the jobbie. Quote Link to comment Share on other sites More sharing options...
Ben John - Hynes Posted November 18, 2010 Report Share Posted November 18, 2010 (edited) Still not enough chain wrap. Get something double wheeled and it'll sort it. EDIT: Balls, beaten to it! ^ Edited November 18, 2010 by Ben John - Hynes Quote Link to comment Share on other sites More sharing options...
SAMWELL Posted November 18, 2010 Author Report Share Posted November 18, 2010 Ok guys... have tried to turn the tensioner around and that didnt work, not enough space etc. Tried using no tensioner, chain is too short or too long... I ended up putting an old rear mech on which is what I really didnt want to do, but its worked. Hey presto! end of chain skip issue!!! BUT the freewheel is still crunching... feels like the bearings are mashed or something. Guess Ill just have to get a new one... anyone reccomend a STRONG freewheel? Not bothered about clicks, as long as its more than 24? BTW check out my other bike's chain wrap... explain to me how this one never ever skips Pics below Quote Link to comment Share on other sites More sharing options...
Franksx2005 Posted November 19, 2010 Report Share Posted November 19, 2010 (edited) I have a Rohlof for sale if you need it. Edited November 19, 2010 by Franksx2005 Quote Link to comment Share on other sites More sharing options...
N.Wood Posted November 19, 2010 Report Share Posted November 19, 2010 Ok guys... have tried to turn the tensioner around and that didnt work, not enough space etc. Tried using no tensioner, chain is too short or too long... I ended up putting an old rear mech on which is what I really didnt want to do, but its worked. Hey presto! end of chain skip issue!!! BUT the freewheel is still crunching... feels like the bearings are mashed or something. Guess Ill just have to get a new one... anyone reccomend a STRONG freewheel? Not bothered about clicks, as long as its more than 24? BTW check out my other bike's chain wrap... explain to me how this one never ever skips Pics below Echo SL if you wanna spend the dollar, if not Echo TR. The best freewheels out at the moment. 1 Quote Link to comment Share on other sites More sharing options...
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