Drew, These shifters have a friction mode, yes ? If they shift and hold all the gears in friction, but not with indexing it would either be wonky shifters or they are very sensitive to tension. The LX RR has a cable tensioner yes ? Play around with it slightly as you're shifting and see where/when/if it's hold those middle gears.
The middle cogs on 9-speed cassettes, like the 18-21-24 are most prone to wandering, so the derailleur position needs to be "just right" to hold the cogs. On Sunday, February 27, 2022 at 10:59:47 PM UTC-5 Joe Bernard wrote: > On a new bike yes, the cable has probably stretched. If you're not > familiar with fiddling with indexing I'll try a short explainer. > > If you have the older style Deore there will be a cable adjuster on the > derailer where the housing ends. Put your bike in the middle cog (5th gear > on a 9-speed). Is the pulley directly under that cog? You can turn the > adjuster counterclockwise to move it leftward, towards the bigger cogs; > clockwise to move right, closer to the smaller cogs. Shift up and down the > cassette, you'll probably need to do this a few times until the indexing is > correct. > > If it's a newer Deore without the adjuster on the derailer you can use the > one at the shifter. Which I find super annoying so I don't buy those kind > so I don't know which way to turn it, but you'll figure it out after a few > turns this way and that. Good luck! > > On Sunday, February 27, 2022 at 6:59:34 PM UTC-8 rmro...@gmail.com wrote: > >> I cannot answer your question but I am having a similar problem on my >> Clem with a Deore rear mech. I suspect cable stretch on this new bike? >> >> Sent from my iPhone >> >> On Feb 27, 2022, at 7:10 PM, Drw <drewbe...@gmail.com> wrote: >> >> Ok, so I had a rapid rise derailler around and all this talk from >> rivendell got me to put it on my partner's bike that i'm building up. I >> can't for the life of me get it to index correctly. Not saying the >> derailler is the problem, but i've never had this issue with regular pull >> deraillers, so im wondering if i'm missing something. >> >> >> *Components:* >> Rivendell Platypus >> Microshift 9 speed thumb shifter for shimano (new) >> 9 speed shimano cassette (not new but good shape) >> Deore LX rapid rise derailer (not new but good shape) >> >> >> *Specific symptoms:* >> -Can tune it to get the highs and lows, but the middle 2-3 gears get it >> jumping all over and not engaging with the cassette. >> >> Any thoughts would be appreciated, >> Drew. LA >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to rbw-owners-bun...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/rbw-owners-bunch/aebf833a-70ee-4a3c-b6c4-bb5f21dd093dn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rbw-owners-bunch/aebf833a-70ee-4a3c-b6c4-bb5f21dd093dn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/5ddeda3c-f811-46e1-a537-f577dd178fd2n%40googlegroups.com.
