Oops! I hit post before finishing. What I was going to say is that a 38 x 12-34 will give me:
29/35/41/47/55/62/71/76/83 I think that's a pretty nice sweep of 9 gears. That 9 inch jump from the 62 to 71 (16 cog to the 14) is the biggest jump. On Tuesday, February 24, 2015 at 1:14:54 PM UTC-8, Bill Lindsay wrote: > > The 38 will be the only ring. With a 9sp 12-34 IRD cassette that will > give me approximately: > > > > On Tuesday, February 24, 2015 at 1:10:48 PM UTC-8, Steve Palincsar wrote: >> >> On 02/24/2015 04:06 PM, Bill Lindsay wrote: >> >> Nice! >> >> >> They were originally designed to be used with a 9T small sprocket. The >> new ones can be had with an 11 spd Campag cassette with a 10 as the small >> sprocket, and most models have moved to 20" wheels rather than the 17" the >> spaceframes first came with. >> >> >> 38T ring ordered. >> >> >> That's meant to be the big ring? >> >> >> >> >> On Tuesday, February 24, 2015 at 12:58:12 PM UTC-8, Steve Palincsar >> wrote: >>> >>> On 02/24/2015 01:58 PM, Bill Lindsay wrote: >>> >>> Every state in America has a highest point. Among those 50 highest >>> points, the highest highest point is about 19,685 feet on top of Mt >>> McKinley. The lowest highest point is in Florida at 345 ft. But there's a >>> song about lowest highest point being in Delaware, and Delaware has the >>> lowest mean elevation, so I always think of Delaware having the lowest >>> highest point. >>> >>> I'm thinking about pushing my 1x9 drivetrain as low as possible, while >>> still being useful. I'm thinking specifically about a 38 ring, with a >>> 12-36 cassette. I'm wondering if I will hate the drivetrain if my highest >>> gear is only 83.3 inches. >>> >>> So, of all your multi-gear, derailer equipped bikes, who's got the >>> LOWEST HIGHEST GEAR? >>> >>> My current personal lowest-highest gear is on my Atlantis. It's a >>> 40x12 with 700x38 tires, so about 91.6 gear inches. Jan Heine's Herse has >>> a high gear just over 90" and claims to have never been dropped on a >>> descent due to not having a high enough gear. He asserts tucking at over >>> 35mph is always more efficient than pedalling. >>> >>> >>> 56 x 11 = 84.5 gear inches (17 x 1ΒΌ") >>> >>> >>> -- >> >> >> -- 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.
