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:
anyone tried this ring
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03-18-2018, 08:34 PM
bthornt
Senior Member
Join Date: Sep 2011
Location: Jacksonville FL
Posts: 841
for comparison purposes
Quote:
Originally Posted by
Frankwurst
Obviously the patent on bio-pace chainrings has expired.
biopace rings seem much less extreme, but of course I appreciate your sense of history
picture uploaded from an ebay ad for nos biopace rings
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