E-Bike 12-Magnet Hall Pedal Assist Sensor | SM & Waterproof Plug
E-Bike 12-Magnet Hall Pedal Assist Sensor | SM & Waterproof Plug
E-Bike 12-Magnet Double Hall Pedal Assist Sensor
Upgrade your electric bicycle with this precision-engineered 12-Magnet Double Hall Pedal Assist Sensor (PAS). Compatible with virtually all e-bikes on the market, this sensor delivers smooth, responsive pedal-assist performance — making every ride feel effortless and natural. Available with your choice of SM plug (100cm cable) or Waterproof plug (30cm cable) to suit your specific build.
Key Specifications
- Material: High-quality ABS plastic — durable, lightweight, and wear-resistant
- Number of Magnets: 12 — for precise, smooth signal output
- Cable Length: 100cm (SM plug) / 30cm (Waterproof plug)
- Cable Wiring: Red = Power +5V | Yellow/Black = Power − | White/Green = Signal
- Quantity: 1 piece
- Country of Origin: Made in China
Why Choose This Pedal Assist Sensor?
- Compact & Lightweight: Small form factor fits neatly around the bottom bracket without bulky modifications.
- Shockproof & Dustproof: Hall sensor technology is built to withstand the vibrations, dust, and moisture of real-world riding conditions.
- Anti-Corrosion Design: Resists corrosion for long-lasting, reliable performance season after season.
- No Bottom Bracket Disassembly Needed: Simply snap the inner ring onto the axle and fix the outer casing to the frame — no tools required for removal of the crank axle.
- Universal Compatibility: Designed to work with the vast majority of electric bicycles available today.
Installation Guide
- Slide the inner ring (magnet disc) onto the bottom bracket/middle shaft — the slot rotates with the axle.
- Fix the outer sensor casing to your e-bike frame so it remains stationary.
- Connect the cable to your e-bike controller using the correct plug type.
- Right-side installation: Forward pedalling outputs a pulse signal; reverse pedalling does not output.
- Left-side installation: Forward pedalling outputs a pulse signal; reverse pedalling does not output.
Package Contents
- 1 × E-Bike Pedal Assist Sensor (SM plug or Waterproof plug — as selected)
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Note: Please allow 1–2mm tolerance due to manual measurement. Slight color variation may occur due to different display settings.
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Frequently Asked Questions
Q: What e-bikes is this 12-magnet pedal assist sensor compatible with?
A: This pedal assist sensor is designed for broad universal compatibility and fits the vast majority of electric bicycles on the market. It works with most standard bottom bracket sizes and integrates with common e-bike controllers that accept a 5V Hall-effect PAS signal.
Q: What is the difference between the SM plug and the Waterproof plug versions?
A: The SM plug version comes with a 100cm cable and uses a standard SM-style connector common on many mid-range e-bike controllers. The Waterproof plug version features a 30cm cable with a sealed waterproof connector, making it ideal for all-weather riding or builds where moisture resistance is a priority.
Q: Do I need to remove the bottom bracket to install this sensor?
A: No. One of the key advantages of this sensor is that it does not require you to disassemble the bottom bracket or middle shaft. Simply clip the inner magnet ring onto the axle and secure the outer sensor housing to the frame — quick, tool-minimal installation.
Q: Which wire is which on this pedal assist sensor?
A: The cable uses a standard 3-wire configuration: Red = Power +5V, Yellow (or Black) = Power Ground (−), White (or Green) = Signal output. Always match these to the corresponding wires on your e-bike controller before connecting.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.