Thanks, you are right. Yes, I did a "replace all" for tire diameter and forgot about the cogs.
This wheelset is geared for dirt, so the high and low are useful. Anyway, riding fixed so much, I find myself "not bothering" much above 85": I can sprint such a gear to well over 30 at need, but usually just coast. And I find a gear of about 30" ample for most pavement hills, but grinding through sand takes as low as you've got. I will probably play around with these ratios; the 65 is fine for pavement or firm dirt with the Big Apples but a 61" (17t) instead of the 58/18 would work better for looser dirt cruising. On Fri, Mar 30, 2012 at 6:45 PM, Michael Hechmer <mhech...@gmail.com> wrote: > I think the new set up actually looks like this: > > > > > 36 > > 24 > > > > > > *12* > > > 87 > > 58 > > *13* > > > 80 > > 54 > > *14* > > > 75 > > 50 > > *16* > > > 65 > > 44 > > *18* > > > 58 > > 39 > > *20* > > > 52 > > 35 > > *23* > > > 45 > > 30 > > *26* > > > 40 > > 27 > > *30* > > > 35 > > 23 > > *34* > > > 31 > > 20 > > > > I would find a hi gear of 87 too low and a low gear below 25 > unnecessary, but to each his own. Other than the big jump between the 14 & > 16 on the big ring the shifting pattern is remarkably good for a 12 tooth > difference and a wide range cassette. This gearing question has no perfect > answer, just a bunch of trade offs between wide range and acceptable > patterns. If it suits you, go for it . Quite creative. > > > I ride a 44/30 with an 11-28 nine speed cassette and lots of people would > find that.... unusual. > > > Michael > > On Thursday, March 29, 2012 10:39:08 AM UTC-4, Patrick Moore wrote: >> >> In a frantic attempt to make the perfectly accessible into something >> more complicated, I ask whether the 2X9 gearing below I propose for my >> (very Rivish in philosophy if not Rivendellianly lugged) has any >> drawbacks compared to the current 3X7 setup. >> >> Current: >> >> (Big Apple wheelset, 29" diameter.) >> 46 36 24 >> 16 83 65 >> 18 74 58 >> 20 67 52 >> 23 58 45 **30 >> 26 51 40 **27 >> 30 44 35 **23 >> 34 31 20 >> >> Proposed: >> >> 36 24 >> 12 87 58 >> 13 80 54 >> 14 75 50 >> 16 65 33 >> 18 58 33 >> 21 50 33 >> 24 44 29 >> 28 37 25 >> 34 31 20 >> >> Thanks. >> >> -- >> Patrick Moore >> Albuquerque, NM >> For professional resumes, contact >> Patrick Moore, ACRW >> http://resumespecialties.com/**index.html<http://resumespecialties.com/index.html> >> >> -- > 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/-/ddTpBhvCWHkJ. > > 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. > -- Patrick Moore Albuquerque, NM For professional resumes, contact Patrick Moore, ACRW http://resumespecialties.com/index.html -- 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.
