WeeGee Posted April 20, 2007 Report Share Posted April 20, 2007 Does anyone know the max offset you can have from chainwheel to rear sprocket? I'm having probs aligning both with my rohloff chain tensioner! Quote Link to comment Share on other sites More sharing options...
Heatsink Posted April 20, 2007 Report Share Posted April 20, 2007 Does anyone know the max offset you can have from chainwheel to rear sprocket? I'm having probs aligning both with my rohloff chain tensioner!You'll have to judge this by eye! I wouldn't want to go out by more than a few mm max myself, although I'm sure it'll run ok when 1cm out or more, just it's going to wear everything at an angle and increase the likelihood of skipping. You'd have to make a judgement for yourself about when the chain is starting to crunch off the teeth at entry/exit. The tension a Rohloff can provide when extended will give you an advantage in keeping the chain on the rear sprocket though.I've just set-up my chainline this evening following some changes to my drivetrain, and it took a while, but it's worth it to know that it's as straight as possible.I take it you've removed all the spacers and have run out of adjustment towards the wheel? Maybe the other way around? It does take a while to set-up a Rohloff, and to get my chainline perfect to the measurements I'd taken, I had to take time out to source some extra washers. You have to be patience with fitting Rohloffs but it'll be the only time you need to fiddle with them Steve Quote Link to comment Share on other sites More sharing options...
WeeGee Posted April 21, 2007 Author Report Share Posted April 21, 2007 (edited) Cheers, The problem is sort of mine as i'm using a small BB (113mm) if I got the 128mm version i'd be reducing a 10mm offset to about 7mm which I think you'll agree is a hell of alot better! I still have a problem with the Rohloff. I've heard that you can pack out the jockey wheels with washers, the top one doesn't seem to be adjustable though due to the C-clip. Really I need to bring the unit about 2mm back toward the wheel. (At the mo it's just mounted without any washers). Edited April 21, 2007 by WeeGee Quote Link to comment Share on other sites More sharing options...
Heatsink Posted April 21, 2007 Report Share Posted April 21, 2007 You can create more chain space on the top sprocket shaft if you take the washer off that sits between the circlip and the outside of the plate. It's 2mm thick so once removed it would allow a washer of 1mm thickness either side of the sprocket to be added. If you need more space than this then a new shaft would be required.SteveCheers, The problem is sort of mine as i'm using a small BB (113mm) if I got the 128mm version i'd be reducing a 10mm offset to about 7mm which I think you'll agree is a hell of alot better! I still have a problem with the Rohloff. I've heard that you can pack out the jockey wheels with washers, the top one doesn't seem to be adjustable though due to the C-clip. Really I need to bring the unit about 2mm back toward the wheel. (At the mo it's just mounted without any washers). Quote Link to comment Share on other sites More sharing options...
WeeGee Posted April 21, 2007 Author Report Share Posted April 21, 2007 You can create more chain space on the top sprocket shaft if you take the washer off that sits between the circlip and the outside of the plate. It's 2mm thick so once removed it would allow a washer of 1mm thickness either side of the sprocket to be added. If you need more space than this then a new shaft would be required.SteveBrilliant, I think 1mm will be just right.. Many thanks, don't like spending good money only to have to hack and bodge it! Atleast that way, at a later stage I could re-space it back!Graham Quote Link to comment Share on other sites More sharing options...
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