This Trek Diametric rotor-mounted speed sensor magnet (black) is engineered to work with Trek e-bike systems. It secures directly to the rotor, allowing accurate speed readings without interfering with brake operation.

Features:

• OEM magnet for Trek e-bike Diametric speed sensor systems
• Designed for rotor mounting — avoids spokes and calipers
• Secure clamp design with black finish
• Precise alignment ensures consistent speed readings