As per title, my chain is very flappy, it's pretty much new, as is the cassette, I lengthened it according to the popular 'put it on big /big rings with a two link overlap, with the chain not on the rear derailleur ' method.
But here's the complication.. It's a cheap sram x4 rear mech, and given that I've worn out other bits of the drive chain I'm thinking it might be shot, so the question is, do I pull a couple more links out of the chain or just buy a new rear derailleur? I was thinking maybe a sram x7.
Thanks
I'd be looking at a "clutch" mech of one sort or another.
I'd be looking at a "clutch" mech of one sort or another.
If you are 10 speed then clutch mech would be the way to go.
If you are 9 speed then a new mech might do the trick. Sram mechs are quite bad for developing play in the pivots, this can make them feel a bit "baggy" it might also be the spring
Have you checked that the new chain has the same number of links as the old one?
I would take another link out and see how you get on before changing the mech.
It's an 8 speed cassette, triple front if that makes any difference, I'd expect it to be fairly tight as less travel? I think the cassette is 11/34
Thanks
+1Have you checked that the new chain has the same number of links as the old one?
If it's the same length then could be the mech, if longer then try shortening it to same as old one.
I didn't check the old chain I just binned it :s
Hardtail?
Change into Big - Big
The arm of the rear mech should be pretty tight hanging at about 4 o'clock.
If its not the chain is too long
If you have a full sus then you need to account for chain growth, so in Big-Big a bit closer to the vertical to give you more room
Sounds like you have the correct chain length. What's happening when you shift to little/little? Is the mech moving to pull in as much chain as possible or hanging down somewhere in the middle?
If there is still slack in little/little, and the rear mech is moving as it should, you might need a rear mech with a longer cage. If not the mech may be shot and you will need a new one.
Don't shorten the chain beyond big big plus 2 links (in whatever position the chain is tightest if it's full sus) or you could get the chain stuck round the big ring/big sprocket (or rip things to bits going over a bump on full sus). You shouldn't be using this gear anyway, but it is a lot less annoying to have the chain slap about a bit in small/small (which you also shouldn't be using anyway).