How e-bike assist sensors really work
How e-bike pedal-assist sensors work
Pedal assist starts with a sensor. These pages explain what cadence, torque and speed sensors measure, and how that reaches the motor. Each point comes from a saved source.
All the sensor notes
- What an E-Bike Sensor Does and Why Assist Needs OneHow a pedal-assist e-bike knows you're pedaling, and what the sensor tells the motor before any help arrives.
- Cadence Sensors ExplainedWhat a cadence sensor measures, how magnets and switches can produce the signal, and what that means for how assist feels.
- Torque Sensors ExplainedWhat a torque sensor measures on an e-bike, where the sources say it can sit, and how that differs from counting pedal turns.
- Torque Sensors vs Cadence Sensors: The DifferencesHow the two main e-bike sensor types differ in what they measure, with what the sources say about each.
- Speed Sensors and Wheel MagnetsWhat the wheel speed sensor does on an e-bike, why it matters for the assist cut-off, and what the sources say about Hall and reed sensors.