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Dura ace 9000 crank with osymetric chain ring, Sports Equipment, Bicycles & Parts, Bicycles on Carousell
Chris Froome is using these weird chainrings, and they might be helping him win a historic 3rd Tour de France | 新聞 - Yahoo雅虎香港
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Osymetric SA on Twitter: "Achieve 110% with Osymetric chainrings! This powerful tool can reduce lactic acid by 10% and increase power by 10%! https://t.co/OyJw6XdxPw" / Twitter
![130 BCD Single 56TT Outer Ring :: Osymetric Chainrings :: Other & Coaching :: trainSharp SRM Powermeters 130 BCD Single 56TT Outer Ring :: Osymetric Chainrings :: Other & Coaching :: trainSharp SRM Powermeters](https://www.trainsharpcyclecoaching.co.uk/srm/images/P/osym%2052.png)