William: Thanks for that quote. That makes sense. When I modified the original cassette, the 13 & 15 were stock & maybe I got lucky with my 17 & 19 in place of the original 18. Modifying the 13-26, I took the 14 out so apparently the 13 & 15 aren't meant to be adjacent, but my original 13 happens to work better. Some days you get lucky.
dougP On Nov 21, 4:48 pm, William <tapebu...@gmail.com> wrote: > Quoting Sheldon (RIP) > > "To provide the Hyperglide functionality, each sprocket must be designed > with regard to the adjacent sprockets. For instance, there are 3 different > 15 tooth sprockets for 7-speed systems: one version works between a 13 and > a 17; another works between a 14 and a 17; another works between a 14 and a > 16." > > Mixing and matching cogs is possible, but if the resulting adjacent pair > doesn't have the ramps line up, then shifting can be sub-optimal. A > 'top-position' cog has the little ratchety indents to take the lock ring, > so that's special, and the ramps (or singular ramp on my 11) is lined up to > hand the chain off to a particular next position cog. If they line up > right, it'll shift right. If they line up wrong, it might not be quite as > good. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. 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.
