Tightening derailleur cage

[MickeyBlueEyes]

The cage seems to be working loose from the main body of the derailleur. I've taken the jockey wheels out to have a look but can't find a way of tightening it. Could anyone point me in the right direction please?

 

[RecordAceFromNew]

Don't know what make and model you are referring to, but practically all Shimano parallelogram-cage interfaces are spring mounted held in place by a circlip, with no simple means of adjustment if worn.

 

[Cycleops]

Sounds like you need a new mech. Shouldn't be too expensive.

 

[MickeyBlueEyes]

Don't know what make and model you are referring to, but practically all Shimano parallelogram-cage interfaces are spring mounted held in place by a circlip, with no simple means of adjustment if worn.

Shimano 2300 8speed on the hack.

 

[Nigelnaturist]

as @Cycleops says RD's are not expensive at the low end even Tiagra and 105 can be had for the mid £20's Sora 9sp will work fine is about £18

 

[MickeyBlueEyes]

as @Cycleops says RD's are not expensive at the low end even Tiagra and 105 can be had for the mid £20's Sora 9sp will work fine is about £18

9 speed would work ok? Would you just lock out the mechs lower or upper limit or something?

 

[mcshroom]

The Mech isn't indexed and just goes where the shifter tells it to. I have Sora 9sp front and rear mechs on my road bike with 2300 shifters, and a sora front mech on my tourer with older 2200 shifters (it has an Alivo rear mech, up to 9sp the cable pull on road and MTB rear mechs are the same so either work)

 

[Nigelnaturist]

RD's are dumb and are controlled by the shifter, this is why when people refer to re-indexing the gears its wrong, anyway so almost any RD would work, just set it up as you would your current one, i.e. shifter in high gear, adjust the RD so its in line with your smallest cog (highest gear) with the high stop screw, attach cable finger tight, adjust cable slack with barrel adjuster holding the RD with your fingers you will feel as soon as the slack is taken up, this should then go through the gears as you change the shifter.
See no mention of indexing at all.

 

[Nigelnaturist]

The Mech isn't indexed and just goes where the shifter tells it to. I have Sora 9sp front and rear mechs on my road bike with 2300 shifters, and a sora front mech on my tourer with older 2200 shifters (it has an Alivo rear mech, up to 9sp the cable pull on road and MTB rear mechs are the same so either work)

cross post
Even 10sp RD's would be fine, ran a 105 RD5701 GS with Sora 9sp shifters, I suspect 10sp MTB RD's will work too.

 

[RecordAceFromNew]

I suspect 10sp MTB RD's will work too.

Not so unfortunately.

Also it is not strictly true that rear mechs are "not indexed", in the sense that although you only get "clicks" within the shifter, if the rear mech movement is not matched to the cable pulled by the shifter, the mech will not index correctly in step with the cassette spacing for each click at the shifter.

Although Shimano stuck with a particular cable pull / mech movement standard (SIS) for a long time, a couple of years ago they introduced a new 10 speed mtb (Dyna-Sys) standard, the rest is history...

 

[Nigelnaturist]

Not so unfortunately.

Also it is not strictly true that rear mechs are "not indexed", in the sense that although you only get "clicks" within the shifter, if the rear mech movement is not matched to the cable pulled by the shifter, the mech will not index correctly in step with the cassette spacing for each click at the shifter.

Although Shimano stuck with a particular cable pull / mech movement standard (SIS) for a long time, a couple of years ago they introduced a new 10 speed mtb (Dyna-Sys) standard, the rest is history...

Looked up the 10sp MTB RD's from the pics it has a different cable pull set up, I would need to look furthur into specs regarding cassette spacer, cog width ect but will coincide its different set up.
RD's on the whole are only indexed in so much as they move according to the index (ratio pull) of the shifter, which will match the spacing of the cassette 8sp, 9sp 10sp ect.., depending how you route the cable at the RD this can effect the pull, RD's are dumb as are FD's they move the amount according to the shifter, the only thing I would agree with is that you match the index to the relevant set of gears front or rear, if you re-index you change the indexing, setting the RD is nothing more than an adjustment once this is set the indexing is controlled solely by the shifter.

 

[cyberknight]

I went through a couple of 2300 rear mechs in about 3 years , the jockey cage would eventually be loose enough from the main parallelogram to affect shifting.I upgraded to a sora 9 speed mech with 8 speed shifters/chain and i have not had any issues since.

 

[MickeyBlueEyes]

Cheers chaps. Looks like a new mech then. It's certainly the moment in time for having to buy more new bits, could do with a couple of months of fixing nothing !

 

[Nigelnaturist]

Cheers chaps. Looks like a new mech then. It's certainly the moment in time for having to buy more new bits, could do with a couple of months of fixing nothing !

Never happens, I have found.

 

[RecordAceFromNew]

RD's on the whole are only indexed in so much as they move according to the index (ratio pull) of the shifter, which will match the spacing of the cassette 8sp, 9sp 10sp ect.., depending how you route the cable at the RD this can effect the pull, RD's are dumb as are FD's they move the amount according to the shifter, the only thing I would agree with is that you match the index to the relevant set of gears front or rear, if you re-index you change the indexing, setting the RD is nothing more than an adjustment once this is set the indexing is controlled solely by the shifter.

Clicking and pulling cable is controlled solely by the shifter. Indexing otoh is accomplished by matched shifter and mech.

Imho a mech that translates cable pulled to requisite traverse of a cage in multiple axes is no less dumb or intelligent than a shifter, which is essentially a sprung, ratcheted roller that winds cable.