Thread: Brompton 3 to 6 Speed Conversion
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Old 05-10-14 | 04:47 PM
  #12  
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smallwheeler
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From: NYC
Originally Posted by dynaryder
...The BWR hub used for the 6 speed takes two cogs...
or 3 cogs...19t-16t-13t or 18t-15t-12t.. 9 speed brompton...

for those of you who can't do math, that's a gearing range of over 9000 %!




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