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Post by kieranrussell on May 5, 2014 13:25:03 GMT
Hey guys,
I was on the marin today and nearly every bit of rocky single track or jump i go on the chain comes off, a couple of weeks back i took a link out of my chain to see if it made a difference and it did but only a bit! Is there anything I can do to fix this relatively cheaply?
Thanks in advance, Kieran
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Post by lesz42 on May 5, 2014 15:21:21 GMT
front ring or back cassette?
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Post by Russ on May 5, 2014 17:11:53 GMT
Comes off when pedalling or freewheeling?
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Post by kieranrussell on May 5, 2014 20:06:06 GMT
Mainly front ring but occasionally the rear cassette, both to be honest just when I'm going down a rocky bit the chain just shakes itself off
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Post by Russ on May 5, 2014 20:30:01 GMT
Try a different gear selection perhaps?
The problem can be if you are in the middle ring at the front and a small-ish cog at the back then the rear mech is already taking up lots of chain slack so can't really take up anymore when you hit some bumps.
So instead as an example go big ring up front with a larger cog at the back so you end up with similar overall gearing but the rear mech will have less chain slack to deal with so will cope with the bumps better.
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Post by oldgit on May 5, 2014 21:31:02 GMT
remove more links; your chain is too slack
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Post by kieranrussell on May 6, 2014 6:56:30 GMT
Okay ill try diffrenty gears and if not yeah ill take a couple of links out, will that not affect the gear selection as in it will not change gear when i select a gear? thanks guys!
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Post by oldgit on May 6, 2014 8:47:28 GMT
Put the rear changer in big sprocket and the front in big ring (not recommended when riding as it strains the chain angle); in this position the rear jockey wheels should be approx. 1cm from the sprocket; if not remove links accordingly. Have you replaced your chain recently?
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Post by kieranrussell on May 6, 2014 15:07:47 GMT
okay ill try that thank you! no the chain is about a year old of decent use but im saving up for a better bike as the one i have at the mo is quite bad so i am reluctant to by parts
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Post by kieranrussell on May 6, 2014 15:22:40 GMT
Yeah when i have the front on the biggest ring as well as the biggest cog on the cassette and the jockey wheel is about 1.2mm away from the cassette
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Post by oldgit on May 6, 2014 17:06:53 GMT
Apart from a slightly bent chain set I can't help any more. Good luck
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Post by kieranrussell on May 6, 2014 19:29:00 GMT
That is a possibility! Thank you very much
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