Galfer E-Bike Speed Sensor Magnets Restore Accurate Speed Data Don't let a faulty magnet compromise your riding experience. The Galfer E-Bike Speed Sensor Magnet restores accurate speed and distance tracking to your e-bike, ensuring your system's electronics provide reliable data for optimal performance, fitness tracking, and navigation. Available in multiple configurations to match major e-bike systems, including a version that integrates directly into compatible Galfer disc rotors for a clean, spoke-magnet-free setup. Features Restores accurate speed and distance tracking on your e-bike system Compatible with major e-bike systems including Shimano, Bosch, Brose, Giant, Trek, and Specialized Integrated rotor optionfits directly into compatible Galfer disc rotors with a magnet slot, eliminating the need for a traditional spoke-mounted magnet Strong, corrosion-resistant magnet construction for durable, long-lasting performance Compact, lightweight design with minimal impact on bike aesthetics Easy installation with no specialized tools required SPECIFICATIONSIntended Use E-MTB, E-Trekking, Urban E-Bike Compatibility Shimano, Bosch, Brose, Giant, Trek, Specialized (confirm exact system before ordering)Mounting Spoke mount or integrated into compatible Galfer disc rotor | Galfer | E-Bike Speed Sensor Magnets Bolt-On: Trek, Spec. >2019