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      Bontrager Aero Wheel Magnet

      Compatible with Bontrager and Trek computers. SpeedTrap Spacer provides a clean solution to reduce distance between sensor and magnet on SpeedTrap compatible Bontrager forks. DuoTrap frame parts for select Madone and Speed Concept bicycles. New 5mm crank CAD magnet for tighter clearances and Interchange sensors. 10mm crank CAD magnet best for DuoTrap sensor