LiamWood! Posted January 2, 2008 Report Share Posted January 2, 2008 Tonight i snapped my 3rd chain in about 4 weeks! i was pedling home after about half an hours riding.Pedling along i heard a dink and the back wheel locked up, looked to find my chain had come off after a couple of minutes of trying to put my chain on i finally got it back on, got back on my bike harlf a pedal turn and it went dink again put my chain fell on the floor, its done this 3 times whilst peddling home or pedling about and once gapping.Why is it my chains keep snapping? All of the chains ive snapped has keen kmc cool chains and other kmc chains.Liam Quote Link to comment Share on other sites More sharing options...
Skoze Posted January 2, 2008 Report Share Posted January 2, 2008 How tight/ loose is your chain? are you using the dodgy split link thing? Buy a beefier chain Quote Link to comment Share on other sites More sharing options...
Simpson Posted January 2, 2008 Report Share Posted January 2, 2008 Don't mean to sound partonising..... but do you know how to fit a chain propperly? i mean.... im used to fixing chains but..... if there all new chains it shouldn't be breaking, however if 1 link goes the whole chains usually ready to go! Quote Link to comment Share on other sites More sharing options...
_Owen. Posted January 2, 2008 Report Share Posted January 2, 2008 Have you recently brought a new bb or anything that could effect your chain alignment?? by the sounds of it thats the problem, especially if your chai fel off before it snapped! Quote Link to comment Share on other sites More sharing options...
LiamWood! Posted January 2, 2008 Author Report Share Posted January 2, 2008 Ive just started using a front freewheel, the bottom braket is not the longest one, the freewheel just scrapes on the bottom bracket shell, sometimes my chain rubs on the tyre, i cant run a beefy because it hits the tyre and just rubs. Quote Link to comment Share on other sites More sharing options...
Ladd Posted January 2, 2008 Report Share Posted January 2, 2008 To much stress on the chain at the angle with the bb your runing or your not joining the chain properly with the tool. Quote Link to comment Share on other sites More sharing options...
Muel Posted January 2, 2008 Report Share Posted January 2, 2008 Make sure the chain line is right, take the split link bollocks out, lube it, make sure its tensioned right.It shouldn't be snapping that often. Quote Link to comment Share on other sites More sharing options...
LiamWood! Posted January 2, 2008 Author Report Share Posted January 2, 2008 I dont run a split link, how can i sort the chain alinement out? Quote Link to comment Share on other sites More sharing options...
Simpson Posted January 2, 2008 Report Share Posted January 2, 2008 Longer BB? Quote Link to comment Share on other sites More sharing options...
Ladd Posted January 2, 2008 Report Share Posted January 2, 2008 Buy a new bb 128 or somthing like that Quote Link to comment Share on other sites More sharing options...
sidehop Posted January 3, 2008 Report Share Posted January 3, 2008 is your chain tight? Is your bb bent?If you have a nice tite chain to begin with then your bb is bent what happens is you get ubbbber stress on the chain and ping its away... Mine did it. Quote Link to comment Share on other sites More sharing options...
Will Arnold Posted January 3, 2008 Report Share Posted January 3, 2008 use the kmc split link! i've always used one and only ever snapped a kmc twice in like 4 years! i guaran-damn-tee that its due to dodgy chain toolage Quote Link to comment Share on other sites More sharing options...
The Riddlers Posted January 3, 2008 Report Share Posted January 3, 2008 Bent front chainring or incorrect BB all putting stress on the chain. Quote Link to comment Share on other sites More sharing options...
Muel Posted January 3, 2008 Report Share Posted January 3, 2008 use the kmc split link! i've always used one and only ever snapped a kmc twice in like 4 years! i guaran-damn-tee that its due to dodgy chain toolageBetween me and my mate, we have snapped 5 in a year. I'd rather take it out and have it never snap again. Quote Link to comment Share on other sites More sharing options...
LiamWood! Posted January 3, 2008 Author Report Share Posted January 3, 2008 The bb is not bent its brand new, and its a brand new tensile but when i spin the cranks round half a turn it rubs and harlf a turn it doesnt, is that good or bad?Liam Quote Link to comment Share on other sites More sharing options...
JT! Posted January 3, 2008 Report Share Posted January 3, 2008 If your chain is comming off, and / or rubbing on anything. It's bad.On a mod you should have a 128/127.5mm BB. And should have a good tension too. Quote Link to comment Share on other sites More sharing options...
squince Posted January 3, 2008 Report Share Posted January 3, 2008 Probably just bad luck to be honest.spin your wheel (if you have a front freewheel) and see if it sounds smooth or not. Quote Link to comment Share on other sites More sharing options...
padarik Posted January 3, 2008 Report Share Posted January 3, 2008 If your chain is comming off, and / or rubbing on anything. It's bad.On a mod you should have a 128/127.5mm BB. And should have a good tension too.listen to him! get a new longer bb and a khe chain or sumat beefy will be fine Quote Link to comment Share on other sites More sharing options...
fyfey Posted January 3, 2008 Report Share Posted January 3, 2008 I've just snapped my first chain... 'twas a KMC. Not that old either. I was using the split-link and that's what snapped.I've now got a new KMC, Tensile and rear sprocket... Hopefully this one will last a bit longer! Quote Link to comment Share on other sites More sharing options...
Deonn h Posted January 3, 2008 Report Share Posted January 3, 2008 use the kmc split link! i've always used one and only ever snapped a kmc twice in like 4 years! i guaran-damn-tee that its due to dodgy chain toolageLOLMine popped off after about 2 rides just after a drop.Id say never use split link in trials. Quote Link to comment Share on other sites More sharing options...
LiamWood! Posted January 3, 2008 Author Report Share Posted January 3, 2008 What i ment by it rubs, the freewheel rubs on the bb shell, if you sully turn the cranks round harf a turn you can hear it scrape, then harf a turn you cant. Quote Link to comment Share on other sites More sharing options...
Captain Scarlet Posted January 3, 2008 Report Share Posted January 3, 2008 (edited) use the kmc split link! i've always used one and only ever snapped a kmc twice in like 4 years! i guaran-damn-tee that its due to dodgy chain toolageIts called a snap link for a reason.It snaps.I had one for about a month for it to split.Just a chain with no master link is the way to go.Having one link different from the others makes it more likely to break. Edited January 3, 2008 by Fugley Quote Link to comment Share on other sites More sharing options...
Tomm Posted January 3, 2008 Report Share Posted January 3, 2008 Its called a snap link for a reason.It snaps.No, it's called a split link mate Er... I have had no problem with the split links. They're easily strong enough and I think if you're having problems with the back bit popping off you're probably doing it wrong. Quote Link to comment Share on other sites More sharing options...
ManxTrialSpaz Posted January 3, 2008 Report Share Posted January 3, 2008 What i ment by it rubs, the freewheel rubs on the bb shell, if you sully turn the cranks round harf a turn you can hear it scrape, then harf a turn you cant.That's not good. That either means your freewheel has been put on incorrectly - at an angle, or your bb is bent. Either one of those will cause the extra tension in the chain and cause the chain to snap. Quote Link to comment Share on other sites More sharing options...
JT! Posted January 3, 2008 Report Share Posted January 3, 2008 What i ment by it rubs, the freewheel rubs on the bb shell, if you sully turn the cranks round harf a turn you can hear it scrape, then harf a turn you cant.You bb is too short then. Quote Link to comment Share on other sites More sharing options...
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