To reply to Jacob's question: I've never used a 1X system with more than 5 or 7 cogs in back, but I have used many pseudo 1X9s and, now, 10, but these really being "1 plus hardly ever used granny." That is, the drivetrain is for all practical purposes, and for 95%+ of the riding, a 1X system. If set up right, this has the advantage that you don't have to shift rings, and therefore, usually, multiple rear cogs as followup, to maintain serial gear ratios. I discovered this when I had a Fargo with a standard X2D triple (46/36/24) X 7: the big ring was fine for pavement and flat dirt, but get into dirt and hills, and I was always having to shift between big and middle ring. A wide range double cured that -- far nicer to ride. Again, the 24 was just along for most rides, but comforting in a psychological way when one knew it was there "just in case."
I suppose that a 1X system takes this to the next level -- *all* your gears, including those tiny ones in the low 20s that I personally never use, at the flick of the right hand. Here's the 1X12 drivetrain I'd like on my "road bike for dirt", 28.5" tires: 44 14 90 15 84 16 78 17 74 18 70 19 66 20 63 22 57 24 52 28 45 34 37 42 30 The * system actuel:* 42 28 14 86 15 80 16 75 17 70 18 67 44 19 63 42 20 60 40 22 54 36 24 50 33 28 43 29 On Thu, Aug 10, 2017 at 4:12 PM, Patrick Moore <bertin...@gmail.com> wrote: > 12? On the Rivendell list? Who'd a' thunk?? > > Seriously, I have no complaint with 12, as long as it doesn't involve > electric shifting and computers, and as long as it last a reasonable number > of miles. I'll be interested to hear how 11 and 12 (and for that matter, > 10, to which I changed from 9 not too long ago) last compared to, say, oh, > 8 or 7. > > 127" gear? Wow, you are much better off now than before and I, if it were > my bike, would drop the gear to something no higher than 100; my only > derailleur bike tops out at 86 gi, and my highest geared road bike tops out > at 76" (because it's a fixie with a 76 high/67 low). I can easily hit 30 in > a 76, at least for a quarter mile or so, and I several times hit 37 1/2 in > a 75" gear and twice 48 in a 96" gear, back when my gofast derailleur bike > topped out at 48/12 X 24" wheel (559 X 23 mm). 30 in a 76" gear is only a > wee bit above 130 r's pm, which is quite easy on a downhill or with a > strong tailwind. > > Irreguleur ja...@harring.nyc via googlegroups.com asked about the > longevity and dish of a 12 speed rear wheel. And I'll add, what is the OL > spacing? I too will be interested in hearing about the dish. > > I seem to recall a post not too long ago, on this or the iBob list, > showcasing a young adventure rider who shifts 12 SRAMs in back with a > friction shifter. Can anyone recall that thread? If it's possible to shift > 10 using high-leverage shifter and derailleur, I should think that 12 would > be possible with a more modern, lower-leverage system -- say, Silver > shifters and a modern rd. > > Patrick Moore, who just had a nice 20 miler in breezy, moderately warm > ABQ, NM in that 76" gear. > > On Wed, Aug 9, 2017 at 3:26 PM, Keith Muller <pharmer...@gmail.com> wrote: > >> Hey all! >> >> So I upgraded the drivetrain on my Hunqapillar with a new SRAM Eagle XX1 >> Kit and a White Industries M30 Crank w/ 38T Ring. I must say it's solid >> setup. I'm excited to get out and do some bike packing with it. I was >> comparing gear inches on this setup with the touring setup on my Atlantis. >> I lost a little on the top end that I rarely ever us, But I was able to >> match the low end. So far I'm happy with the setup. A few loaded trips >> will give me the full story. I've posted some data below for the bike >> nerds out there. >> >> Keith >> >> Bike Hunqapillar Atlantis >> Chainrings 38T 47/36/26T >> Cassette 10-50T 12 Spd 11-34T 9 Spd >> Gear Inch Comparison >> >> Hunq Atlantis >> 38 47 36 26 >> 10 110.54 11 *123.7* 94.7 68.4 >> 12 92.21 13 104.6 80.1 57.9 >> 14 78.83 15 90.7 69.5 50.2 >> 16 69.23 17 80 61.3 44.3 >> 18 61.38 20 68 52.1 37.6 >> 21 52.65 23 59.1 45.3 32.7 >> 24 45.96 26 52.3 40.1 28.9 >> 28 39.56 30 45.3 34.7 25.1 >> 32 34.61 34 40 30.6 *22.1* >> 36 30.83 >> 42 26.18 >> 50 22.11 >> Speed Comparison - Based on a 29 X 2.3 Tire pedaling at 90rpms >> >> Hunq Atlantis >> Mph Mph >> Highest Gear 29.6 Highest Gear 33.3 >> Lowest Gear 5.9 Lowest Gear 5.9 >> >> -- >> 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 https://groups.google.com/group/rbw-owners-bunch. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Resumes, LinkedIn profiles, bios, and letters that get interviews. > By-the-hour resume and LinkedIn coaching. > Other professional writing services. > http://www.resumespecialties.com/ > www.linkedin.com/in/patrickmooreresumespec/ > Patrick Moore > Alburquerque, Nouvelle Mexique, Vereinigte Staaten > ************************************************************************** > ************** > *Interested in trading resume, LinkedIn, and other writing work for > professional (professional) help with marketing and growing my resumes, > etc. business. Respondents should have considerable experience in helping > small, online businesses grow. Please contact me at > patrickmo...@resumespecialties.com <patrickmo...@resumespecialties.com>. > Thanks.* > > > > -- Resumes, LinkedIn profiles, bios, and letters that get interviews. By-the-hour resume and LinkedIn coaching. Other professional writing services. http://www.resumespecialties.com/ www.linkedin.com/in/patrickmooreresumespec/ Patrick Moore Alburquerque, Nouvelle Mexique, Vereinigte Staaten ************************************************************************** ************** *Interested in trading resume, LinkedIn, and other writing work for professional (professional) help with marketing and growing my resumes, etc. business. Respondents should have considerable experience in helping small, online businesses grow. Please contact me at patrickmo...@resumespecialties.com <patrickmo...@resumespecialties.com>. Thanks.* -- 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 https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
