So this is now a friction-shifting drivetrain, right? In that case, it doesn't seem like the spacing on the cassette should even matter. All that should matter is that once you've shifted into a given cog, the derailleur stays still and doesn't ghost-shift you out of the cog. The main things that I can think of that could cause ghost shifting: 1) cracked frame, 2) friction between the cable and the BB, 3) cassette wobbling, and 4) play in the derailleur/cog. My suggestion: zip-tie a piece of derailleur cable housing under the bottom bracket and run the cable through it. If the ghost-shifting stops then you know that friction was causing it. That worked for me with my Rambouillet. You can easily feel for "3" or "4" and rule it out. I've had bad shifting because of "1" a couple of times so it's not impossible.
FWIW, I tried the silver-shifter 9-speed friction shifting for about a year before giving up and going back to indexed shifting. Main problem: In the winter when your ears are covered in a couple of layers of fabric, you can't hear when you are not-quite in gear. So then you get to a hill, stand up, and BANG it shifts into the next cog down. Used to be with older 5-speed freewheels and accompanying chains that you could feel when it wasn't quite in gear. But with modern narrow chains, they are too flexible to let you feel when you are in and out of gear. On Thursday, July 2, 2015 at 10:59:32 PM UTC-4, Tim wrote: > > I'm so frustrated with my drive train. I had Shimano 9 speed bar ends with > a front triple. They worked great in index mode. The indexing got finicky > so I switched to friction. It worked well for a bit then the "ghost > shifting" started. I switched to Silver bar ends. They feel great but I > just can't get them dialed in. I've worked on it it, I took it to my LBS > and they tuned it up, but it still doesn't shift right. I had them check > for a bent derailer hanger and they said it wasn't. When I shift to the two > or three lowest (biggest) cogs, it will not stay on that cog. The problem > is worse when I am going from higher to lower gear. If I mess with the > shifter it will finally stay in gear, but it's really frustrating, > especially when riding lots of rollers. I can't descend a roller and then > hit the gear I need for the climb. It always skips out. If I do slight > adjustments to the cable tension the best I can do is move the problem from > the lowest end of the gears to the middle part. It's driving me crazy! By > the way, all of the parts, chain rings, cassette, and chain, are new (they > were all bought at the same time and now have around 1500-1700km on them. > Any ideas? Please!?!? -- 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.
