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Post by shandybills on Oct 28, 2014 23:45:17 GMT
I have a 27speed Giant Trance X4 with a shimano chain which broke. i replaced the chain with a 9 speed sram with quick link. since fitting the chain jumps when putting pressure on uphills sounds like it could snap. The gears are adjusted correctly and are shifting great. the front chain rings looked a little worn but nothing really, so replaced all 3. same result bang!!!. the chain is the right length big cog to big cog plus 2 links.
I have now put the broken shimano back on minus a link to try, and it work great.
Rear cassette looks like new with no wear or missing teeth.
any help guys
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Post by marsbarman on Oct 28, 2014 23:56:06 GMT
It could be the SRAM chain and the Shimano cassette that's causing the issues, I don't think they're actually compatible. At least, that's the rule of thumb myself and mates go by, best to get a Shimano chain I reckon. I get the feeling it's something to do with the way the links and cassette teeth are designed to allow for smoother shifting.
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Post by Admin on Oct 29, 2014 5:37:34 GMT
I have a 27speed Giant Trance X4 with a shimano chain which broke. i replaced the chain with a 9 speed sram with quick link. since fitting the chain jumps when putting pressure on uphills sounds like it could snap. The gears are adjusted correctly and are shifting great. the front chain rings looked a little worn but nothing really, so replaced all 3. same result bang!!!. the chain is the right length big cog to big cog plus 2 links. I have now put the broken shimano back on minus a link to try, and it work great. Rear cassette looks like new with no wear or missing teeth. any help guys I've used SRAM cassettes with Shimano chains before and had no issues, is your chain length correct? you say the cassette looks new but how much use has it had prior to the old chain snapping? How much had your old chain streached by before it snapped? an old cassette with a new chain will cause the chain to slip, especially if the old chain was beyond limits. Also, if you use a new chain on an old worn cassette you risk damaging the new chain. |
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Post by spacemonkey on Oct 29, 2014 7:54:58 GMT
I would say worn cassette. I've used SRAM chains and Shimano cassettes for ages and never had any problems unless I've tryed to use a old cassette with new chain, change cassette and no more jumping chain.
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Post by Jimbo on Oct 29, 2014 8:08:35 GMT
^^ me too
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Post by hodgy on Oct 29, 2014 8:36:56 GMT
May be slightly extreme ..but everytime I change a chain the cassette gets changed too..I know that the general rule of thumb is 2 chains for every cassette but I never risk it ( and in reality probably ride a chain to death before replacing it anyway )
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Deleted
Deleted Member
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Post by Deleted on Oct 29, 2014 10:20:29 GMT
Sounds like a classic worn cassette - fit a new one with your new chain and buy a chain wear indicator at the same time. With care you can get 3 chains out of a cassette.
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