Thread: What are Suntour Power Rings?
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Old 06-25-13, 07:16 PM
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Jeff Wills
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Originally Posted by caintuck
I'm looking at these for an old mountain bike commuter.

http://page8.auctions.yahoo.co.jp/jp/auction/h174835713


Are the power rings Suntour's version of Shimano's Biopace? I did a fast search but didn't find much of anything.
SunTour's version of BioPace was called "OvalTech". "PowerRings" are simply round chainrings.
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