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  1. #1
    zpl
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    Florescent green/yellow thing near riders' BB?

    I've noticed that all of the Tour riders have some device attached to the bottom of their bikes, near the bottom bracket. It's a florescent yellow/green cylindrical object of some sort. What is it?

    Thanks,

    Scott

  2. #2
    Senior Member hoodooguru's Avatar
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    I believe it is a gps type device that tracks where the riders are on the course.

  3. #3
    Senior Member godspiral's Avatar
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    if you're talking about a yellow plasticky thing on the chainstay (tends to be closer to hub than BB), then its a tracking device.

  4. #4
    zpl
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    Cool, thanks.

  5. #5
    Senior Member austinspinner's Avatar
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    That is a transponder which chief use is to determine finishing order across the line. With all of the helicopters, motorcycles and camera's, I don't think they need gps to find out where the riders are.
    "I love fools’ experiments. I am always making them." - Darwin

  6. #6
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    dear god no.....not again

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