Thread: Big Chain Rings
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Old 12-06-16 | 10:10 PM
  #15  
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JohnDThompson
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From: Appleton WI

Bikes: Several, mostly not name brands.

Originally Posted by bulldog1935
very good - I was scanning history sites, so 53 was the largest listed on a site for prewar 49 and postwar 49D. and the 99 is not 50mm bcd outer...the others are
And here it is, removed from service as 54T is not compatible with my elderly decrepitude:

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