Thread: Anyone know the difference between...
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Old 03-10-11 | 11:00 PM
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vredstein
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From: Tucson, Arizona

Bikes: '02 Lemond Buenos Aires, '98 Fuji Touring w/ Shimano Nexus premium, '06 Jamis Nova 853 cross frame set up as commuter, '03 Fuji Roubaix Pro 853 back up training bike

Originally Posted by Wrench_Monkey
Dura Ace A-type versus B-type, specifically where chainrings are concerned?
http://www.sheldonbrown.com/dura-ace.html#chainrings
  • Set "A" uses a 42 tooth small ring, and a corresponding "A" type 53.
  • Set "B" uses a 39 tooth small ring, and a choice of "B" type 52 or "B" type 53
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