On Thu, 2012-03-29 at 08:39 -0600, 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.
1. Chain, chain ring and sprocket life is going to be less. 2. You are never going to use that 24 with anything smaller than a 21T sprocket, so you might as well plot the chart reflecting how you're going to use it, the way you did with the triple. It will make the true shifting pattern more obvious; the current chart obfuscates it, and makes it seem as though you're going to be using the two rings equally when in reality you will be using it as a 1x9 + granny. > > 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 > -- 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.
