Caroline, If you recently had the chain and cassette replace, then your problems with the chain dropping may be because the chainring is worn. Most chainrings are aluminum, which wears faster than steel cogs. And since the same chainring is used for all riding while the cogs are changed by shifting, the wear is more concentrated on the chainring. Both of these lead to chainrings wiring out faster than cogs, and a worn chainring will not hold the chain securely. This can act in combination with problems others hav suggested here - especially bent detailer hanger and too-slack chain - to drop the chain off the chainring. -Wes
On Thursday, June 8, 2023 at 10:53:07 AM UTC-7 Caroline Golum wrote: > Thanks everyone! I had the chain + cassette replaced in February, both new > parts, so I'm assuming they both have plenty of life left. > > The last mechanic I spoke with assured me the limits on my derailleur were > good. FWIW I've had the same Shimano 105 rear derailleur since I built the > bike in 2009. > > On Thursday, June 8, 2023 at 1:42:45 PM UTC-4 lconley wrote: > >> Did the derailleur service include verification that the derailleur >> hanger is straight? >> >> Agree that it is unlikely to be a shifter issue. >> >> Laing >> >> On Thursday, June 8, 2023 at 1:34:54 PM UTC-4 eliot...@gmail.com wrote: >> >>> That sounds like an issue with chain retention and not the shifter. >>> Clutch RD ? New rings ? New chain ? >>> >>> On Thu, Jun 8, 2023 at 10:32 AM Caroline Golum <carolin...@gmail.com> >>> wrote: >>> >>>> Currently running 1x10 and friction bar-end shifting. The chain keeps >>>> coming off my crank, not hitting the right gear in the rear, etc. I've had >>>> the derailleur serviced, it's fine, etc. >>>> >>>> Time to get a new shifter? Switch to indexed shifting? Switch to an >>>> 8/9spd in the rear? The bar-end shifter is RBW's Shifter - Silver2 >>>> <https://www.rivbike.com/products/kjalgjoihjga44451>. >>>> >>>> -- >>>> 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/665b64a1-dea4-47b8-8417-d2b1ce26392bn%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/rbw-owners-bunch/665b64a1-dea4-47b8-8417-d2b1ce26392bn%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/ebfa1cdd-d63a-42ed-ab25-dc0ce4abd6e1n%40googlegroups.com.
