Electric bicycle speed sensor (PAS) — wheel-mounted pedal-assist sensor Key benefits - Smooth, responsive pedal assistance: Detects forward pedal rotation or a set rotational speed and engages the motor for immediate assist, making pedaling easier and more enjoyable. - Natural feel and improved control: The sensor’s torque-detection method provides a proportional assist response (1:1 power assist), so motor support matches rider input. - Broad compatibility: Designed to match with almost all electric bicycles on the market, suitable as an upgrade or replacement for wheel-mounted PAS units. What it does - Function: Wheel-mounted pedal assist speed sensor (PAS) that senses pedal rotation and rotational speed to trigger motor assistance. - 1:1 power assist: Provides proportional motor engagement based on pedal movement, helping riders accelerate or maintain speed with less effort. - Signal processing: Uses a dual magnetic loop with elastic angle differentiation to detect dynamic torque; the signal is converted to DC and transmitted to the controller for consistent performance. Important attributes - Mounting: Wheel-mounted design for straightforward integration with standard electric bicycle setups. - Ergonomics: Engineered with rider comfort and consistent sensing in mind. - Performance: Dual magnetic loop detection for sensitive, reliable torque and speed measurement; stable DC signal output to the controller. - Compatibility: Works with the majority of electric bicycles available on the market that use a wheel-mounted PAS system. Use scenarios - Daily commuting: Provides immediate, natural assist when you start pedaling, reducing effort on hills and during stop-and-go city riding. - Upgrades and repairs: Replace a worn or underperforming PAS to restore proper pedal-assist behavior without changing your motor or controller. - Leisure and cargo rides: Helps maintain steady assistance when carrying loads or riding longer distances, making rides more comfortable. Technical notes - Detects forward pedal rotation and rotational speed to activate the motor. - Employs dual magnetic loop and elastic angle difference to measure dynamic torque; converts the measurement to DC for the controller. This wheel-mounted PAS offers a reliable, ergonomic way to restore or improve pedal-assist responsiveness on compatible electric bicycles.