lankeman Posted January 7, 2009 Report Share Posted January 7, 2009 Right...It is a fixed cog on the back.Was a 17th (way toooo light) but worked fineChanged to a 16th and now slips now and again.Any answers? Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted January 7, 2009 Report Share Posted January 7, 2009 wrong pitch for the chain? knackered cog? bad chain line? Quote Link to comment Share on other sites More sharing options...
Bionic Balls Posted January 7, 2009 Report Share Posted January 7, 2009 Changed to a 16th and now slips now and again.that's the prob...you need to let it all bed in again. Sucks.Apart from that- can you make the chain any tighter? Quote Link to comment Share on other sites More sharing options...
lankeman Posted January 7, 2009 Author Report Share Posted January 7, 2009 bit more info Chain is perfect in lineCog seems fine.As for the pitch .... not to sure ( i will have to look in to that )As for bedding in , that sounds a ball ache lol! Quote Link to comment Share on other sites More sharing options...
N.Wood Posted January 7, 2009 Report Share Posted January 7, 2009 You need more chain wrap. Get a double wheeled tensioner (Rohloff style) if you don't already. Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted January 8, 2009 Report Share Posted January 8, 2009 What people don't seem to know, is that your chain and cogs wear together. If your chain is worn out and keeps snapping, and you replace just the chain, then it'll have to wear into the already worn out cogs, and would barely be stronger than the old one.You're supposed to replace them all together, so that they all wear down evenly, which makes them last a lot longer!Seeing as you've gone from an old 17t cog, and now on a new(?) 16t, the chain would be worn down to match the old cog, so it won't run smoothly on the new one. It'd be best to replace the front cog, and the chain, but that's more money. But it's worth it! Or you could just have it skip for a while until it's all worn down... Quote Link to comment Share on other sites More sharing options...
Jamie_Neal Posted January 8, 2009 Report Share Posted January 8, 2009 Chain is perfect in lineI've often found that the chain can be perfectly in line but when pressure is applied to it, it pulls one way (usually towards the spokes) so I'be found that the rear cog needs to be slightly closer to the spokes than dead in line. However, if the cog is in the same place as the 17th one, follow the advice below. What people don't seem to know, is that your chain and cogs wear together. If your chain is worn out and keeps snapping, and you replace just the chain, then it'll have to wear into the already worn out cogs, and would barely be stronger than the old one.You're supposed to replace them all together, so that they all wear down evenly, which makes them last a lot longer!Seeing as you've gone from an old 17t cog, and now on a new(?) 16t, the chain would be worn down to match the old cog, so it won't run smoothly on the new one. It'd be best to replace the front cog, and the chain, but that's more money. But it's worth it! Or you could just have it skip for a while until it's all worn down... Quote Link to comment Share on other sites More sharing options...
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