David Millar (Garmin) riding some sort of Biopace type chainring?
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David Millar (Garmin) riding some sort of Biopace type chainring?
I just noticed that David Millar was riding some sort of Biopace type chainring while watching a recording of yesterday's stage. Anyone familiar with what he's using and why?
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I did some googling and found:
Source: https://tbtaward.wordpress.com/2010/0...ly-chain-ring/
https://www.osymetric.com/
Source: https://tbtaward.wordpress.com/2010/0...ly-chain-ring/
https://www.osymetric.com/
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My understanding is that its supposed to help the rider pedal quicker over the top and bottom of the revolution. Something like that. I thought it was primarily used on TT bikes.
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Similar to what's on the Cervelo Test Team bikes, they use 'Q-Rings'
https://www.rotorbike.com/nueva/ingles/road_qrings_130bcd.htm
https://www.cervelo.com/en_us/testteam/testteam-bikes/
https://www.rotorbike.com/nueva/ingles/road_qrings_130bcd.htm
https://www.cervelo.com/en_us/testteam/testteam-bikes/
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