Over the past two years have had occasional chain drop on my 1x9 Hillborne. Usually over a hard bump. Figure with the 12-36 in back and a long cage derailleur, it's more likely to happen. Chain is probably too long, but am too lazy to fix it.
Eric Platt St. Paul, MN On Sun, Jun 15, 2014 at 5:33 PM, Patrick Moore <bertin...@gmail.com> wrote: > I've run 1XNs with no throwing, but on road bikes with tight clusters > where most riding is in the middle cogs. > > A quick search for chain retention calls up these, among others: > > http://www.ecovelo.info/category/product-reviews/page/3/ (scroll down). > > Home brew: > http://forums.mtbr.com/drivetrain-shifters-derailleurs-cranks/1x9-conversion-w-coin-retention-device-406026.html > . > > This one looks designed for brazed on fd mounts: > http://www.wiggle.co.uk/ethirteen-xcx-st-direct-mount-chain-retention-top-guide/ > , > > Me, I had problems with the Fargo's chain falling off onto the bb shell > when shifting from the middle to the granny; I installed a Jump Stop: > > http://n-gear.com/whatis.html. Mine is (still, I suppose; I forgot about > it when I switched from a 46/36/24 to a 38/24) attached near the granny; > not sure if it can be adjusted outward and upward to protect a "middle" > ring. > > > On Sun, Jun 15, 2014 at 2:54 PM, Tony DeFilippo <vpi...@gmail.com> wrote: > >> Hey Garth, >> >> Really interesting points! I do need to look on the middle ring 'T >> clearance'. The frame I'm working with is the Saluki for this question >> though not the XO3. I've had 4 occurrences over 2 days of the chain >> coming off the 36T middle; >> >> 1. Came off entirely, onto the BB shell >> 2-3. 'downshifted' to the 24T ring >> 4. 'upshifted' to the 46T ring >> >> Honestly I don't remember alot of specifics but I was near the high or >> low rear cog in each of the instances and very often there was some kind of >> bump or sharp acceleration accompanying the issue. >> >> As for trimming the FD, its not a constant thing. Only when I move the >> rear chain line 3+ cog's usually... so not a terrible burden but definitely >> something I notice a couple times a ride. The lack of the FD has me >> shifting more boldly through 2-3 rear cogs at a time without having to >> think about adjusting my FD trim. This also might be something with the >> bar ends on drop bars, I'm not used to haveing to work both shifters >> simultaneously or near simultaneously in that handlebar setup whereas on >> the alba's or M-bars it was second nature. >> >> Tony >> >> >> >> On Sun, Jun 15, 2014 at 2:21 PM, Garth <garth...@gmail.com> wrote: >> >>> I for one do see benefits to a FD. If you are trimming the FD often, >>> it's either not setup correctly or the crankset is inherently wobbly, as in >>> imperfect laterally . I own 5 Sugino's at the moment and they are all over >>> in that regard. >>> >>> Using 2 or more rings, you can usually get the best chainline as opposed >>> to one ring stretching out over 8 or 9 gears. I use 7 sp. FW and do use >>> all 7 cogs with the 36t middle ring, but even then the 1 and 7 cog are a >>> bit of stretch really. Not optimal but it does the job. 8 speeds surely >>> don't make that any less of stretch. >>> >>> What cogs are you getting the chain slipping off your 36t ring Tony ? >>> I've never had a chainring drop a chain that was not involved in moving im >>> moving it up or down to another ring. That's a curious issue ! >>> >>> And before you consider a 40t middle ring, just make sure it will clear >>> the stays first ! I don't know the XO3 frame, but my Bomba and I suppose >>> a Hunqa frame you are limited to a 36t middle unless you get a wider BB. >>> >>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "RBW Owners Bunch" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/rbw-owners-bunch/iPz54h9hT7s/unsubscribe >>> . >>> To unsubscribe from this group and all its topics, send an email to >>> rbw-owners-bunch+unsubscr...@googlegroups.com. >>> To post to this group, send email to rbw-owners-bunch@googlegroups.com. >>> Visit this group at http://groups.google.com/group/rbw-owners-bunch. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> 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 post to this group, send email to rbw-owners-bunch@googlegroups.com. >> Visit this group at http://groups.google.com/group/rbw-owners-bunch. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Resumes, LinkedIn profiles, and letters that get interviews. > By-the-hour resume and LinkedIn coaching. > Other professional writing services. > http://www.resumespecialties.com/ > Patrick Moore > Albuquerque, Nouvelle Mexique, Etats Unis > > ************************************* > * "Where you come from is gone, where you thought you were going to > never was there, and where you are is no good unless you can get away from > it. Where is there a place for you to be? No place.* > * "Nothing outside you can give you any place," he said. "You needn't to > look at the sky because it's not going to open up and show no place behind > it. You needn't to search for any hole in the ground to look through into > somewhere else. You can't go neither forwards nor backwards into your > daddy's time nor your children's if you have them. In yourself right now is > all the place you've got. If there was any Fall, look there, if there was > any Redemption, look there, and if you expect any Judgment, look there, > because they all three will have to be in your time and your body and where > in your time and your body can they be?* > * "Where in your time and your body has Jesus redeemed you?" he cried. > "Show me where because I don't see the place. If there was a place where > Jesus had redeemed you that would be the place for you to be, but which of > you can find it?” -- Flannery O'Connor, Wise Blood * > > -- > 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 post to this group, send email to rbw-owners-bunch@googlegroups.com. > Visit this group at http://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > -- 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 post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. 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