Thread: Brompton introducing a 12 speed
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Old 01-10-24 | 04:54 PM
  #25  
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tcs
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From: Parts Unknown

Bikes: Mike Melton custom, Alex Moulton AM, Dahon Curl

Originally Posted by Jipe
There are no measurements for the BWR vs. the BSR because the BWR is a proprietary IGH made for Brompton but...
Yes, but the claim was the BWR+derailleur with 11T sprocket was less efficient than a derailleur with a 9T or 10T sprocket. Tests? Data?
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