Thread: New Downtubes
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Old 09-26-14 | 01:25 PM
  #23  
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invisiblehand
Part-time epistemologist
 
Joined: Jun 2005
Posts: 5,870
Likes: 3
From: Washington, DC

Bikes: Jamis Nova, Bike Friday triplet, Bike Friday NWT, STRIDA, Austro Daimler Vent Noir, Hollands Tourer

70x22 with a 16" rear wheel produces the following via Sheldon's gear calculator. Probably a bit low for most folks but it could be made higher with a wider tire. Overall, it seems fine to me.



[h=2]Gear chart using Gear Inches[/h][h=3]For 16 x 1.5 / 37-305 tire with 170 mm cranks[/h][h=3]With Custom Sprocket(s) Cassette[/h][h=3]With Shimano 8-speed Nexus, Alfine Rear Hub[/h][TABLE]
[TR]
[TH="bgcolor: yellow"]0.53 (Low)[/TH]
[TH="bgcolor: yellow"]0.64[/TH]
[TH="bgcolor: yellow"]0.75[/TH]
[TH="bgcolor: yellow"]0.85[/TH]
[TH="bgcolor: yellow"]1.0[/TH]
[TH="bgcolor: yellow"]1.22[/TH]
[TH="bgcolor: yellow"]1.42[/TH]
[TH="bgcolor: yellow"]1.62 (High)[/TH]
[/TR]
[TR]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]22.6[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]27.6[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]32.0[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]36.4[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]42.8[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]52.4[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]60.8[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TD][/TD]
[TH="bgcolor: yellow"]70[/TH]
[/TR]
[TR]
[TH="bgcolor: yellow"]22[/TH]
[TH="bgcolor: white"]69.2[/TH]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
This small version of the chart can be printed, cut out, and taped to your bicycle for reference.
[TABLE]
[TR]
[TH]Low[/TH]
[TH]-[/TH]
[TH]-[/TH]
[TH]-[/TH]
[TH]-[/TH]
[TH]-[/TH]
[TH]-[/TH]
[TH]High[/TH]
[/TR]
[TR]
[TD][TABLE]
[TR]
[TH]22.6[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TH]27.6[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TH]32.0[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TH]36.4[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TH]42.8[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TH]52.4[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TH]60.8[/TH]
[/TR]
[/TABLE]
[/TD]
[TD][TABLE]
[TR]
[TH]69.2

[/TH]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
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