looks like a great solution, Tom. here's my gear-inch chart on my 5-gear rear sprocket and two close chainrings. the 20-16 is a cliff.
4112.2 %462839.544.416.7 %2446.151.820.0 %2055.462.125.0 %1669.277.623.1 %13 85.295.5 but resulting 40 to 96 gear-inches, and very even spread - everything is useful with no overlaps. and here are my good-looking close-ratio chainrings. <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aPC310011_zpse51abc77.jpg> On Sunday, January 13, 2013 5:19:47 AM UTC-6, Tom Harrop wrote: > > Just thought I'd update this thread in case someone else googles it up. I > made the switch to a 7-speed 13–28 HG cassette plus a 36t sprocket and a > SRAM 8-speed chain. To put it scientifically, I would say the drivetrain > feels a bazillion times better. No more ghost shifting or chain skipping > under load. The shift from the 28 to the 36 is just fine by my standards. > > I'm afraid it wasn't a very scientific experiment—aside from the new chain > and cassette I also switched the bottom bracket cable guide, which didn't > look like it was guiding the cables very smoothly (unless two 20° bends are > a good thing), so that could have been partly responsible for the ghost > shifting. Anyway, I'm happy and I won't be going back to 9 speed anytime > soon. The 'frankencassette' looks bizarre with 7 black sprockets and the > silver 36t, but I can't see it when I'm riding, as they say. > > Thanks again for the input! > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/l1kjGd2WrcQJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.