I think Patrick nailed it - good chainline is good for a lot of reasons - one of them is just peace and quiet.
On Thursday, August 14, 2014 2:26:01 PM UTC-5, Patrick Moore wrote: > > I always set up my drivetrains so that the cruising cruising cogs are as > much as possible lined up with the cruising ring. Since I also like close > steps in the cruising range, I sometimes give up high and low gears to > achieve this, but that's fine with me. When my cruising gear was the outer > 46 of a 46/36/24 triple and the middle cog (20) of a 16-34 7, I moved the > crankset inward a bit and felt comfortable using the 46 with all 7 cogs. (I > later swapped the triple for a 38/24, putting the 38 in the middle position > and moving the bb back outward. Now a 13-27 9 speed.) > > This obsession with a straight chain directly contradicts what I think is, > in reality, a good rule of thumb: if your chain is the right length, and, > when you backpedal fast, your chain doesn't slip off the cog or ring, and > doesn't make odd noises, you are probably safe at least for moderate use. > > Patrick "consistency etc" Moore > > On Wednesday, August 13, 2014 10:06:27 PM UTC-7, lungimsam wrote: > >> Where are you supposed to cruise on your front rings and rear cassette if >> you have a cc? In the big ring while in the middle of the cassette? >> >> If so, then according to the Sheldon calculator, based on my cruising >> area of my XD2 triple/9-speed cassette setup's gear inches, I would need a >> 30/42 compact crankset to cruise in the middle area of the big ring of a cc >> and then use the 30 ring for me little gears. Staying in the big one would >> minimize front shifting, too. I don't need more than 100 inches, so 42 x 11 >> would be fine as my big inches combo. I don't think I would spin out of it. >> >> Is this how I should do it? Just wundrin' if I ever want to give it a >> try. I had a used bike once with a 34-50/ 12-28 (I think) that didn't work >> well because I had to live on the small ring, and still didn't have >> anything small enough for the steep stuff. >> >> Where do you cruise in your cc setup? >> > -- 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. For more options, visit https://groups.google.com/d/optout.
