"I replaced the too long screw holding my rack on, which I suspect was the issue all along."
My observation is that with 11 & 12 tooth small cogs, there is little clearance for the drive side rack screw to extend beyond the threaded eyelet without chain interference. On the rack installation video the screw appears to be just long enough but not much, if any, protruding. Being a "lockwashers with lock nuts" kinda guy, I use longer rack screws with a nut. On the drive side, the only thing that fits is a button head screw. These have a very low profile head which clears even an 11 cog. Screwed into the threaded eyelet from the inside, it becomes a stud to which the rack strut attaches with a nut. Note this may be over-thinking the solution. dougP On Saturday, February 2, 2013 6:25:53 AM UTC-8, Jay in Tel Aviv wrote: > > On the bright side, I did manage to adjust my brakes, front and back, > and replace the pads. > Also, I'm pretty sure the old derailler was fine. I replaced the too > long screw holding my rack on, which I suspect was the issue all > along. > > Haaarumph > > > Jay > > On Feb 2, 4:22 pm, Jay in Tel Aviv <jayin...@gmail.com> wrote: > > A couple months ago I bent my rear derailler. Brought it to the LBS > > and was told I "could" bend it back, but would most likely need a new > > one - this being Israel, $80 for low end Shimano. I bent it back, LBS > > adjusted it the best they could and sent me off with a warning > > DON'T USE THE SMALLEST COG OR THE CHAIN WILL FALL OFF AND GET STUCK!!! > > > > So, I ordered an LX derailler for like $30 on the web (Jenson USA) but > > by the time it showed up I had gotten used to indexed shifting again > > and avoiding the smallest cog. It's an 11, who needs an 11? > > > > Fast forward until last week. Rain every day. Moved to a new office 55 > > minutes away and the chain fell off and got stuck, in pouring rain, > > twice. So I figured this weekend it was time to install the new > > derailler. Expect I never did it before. No problem, I thought - I > > have an internet connection and am fairly competent at following > > instructions. > > > > Long story short, 3 hours later I got the d%&&$ed thing on the bike > > and adjusted the limit screws, cable tension, chain length and > > everything else I could find. In friction mode it shifts sort of OK, > > not great. Hopefully good enough to get to work tomorrow and to the > > LBS at the end of the day, hat in hand. > > > > Haaaarrumph. > > > > Jay > -- 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?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
