Bontrager DuoTrap S Wheel Magnet Update Kit | Trek Bikes
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Bontrager DuoTrap S Wheel Magnet Update Kit

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$5.99 Model 25411
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Get your computer dialed with the perfect magnet

Getting the correctly sized magnets means that you're worrying about where the next coffee stop is, not if your computer is recording the ride.

Product details

  1. Positions magnet closer to the sensor for improved signal
  2. Universal wheel magnets work with any speed sensor

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