- No. 43, Yushan Road, Huqiu District, Suzhou City, Jiangsu Province, China
- +8613671928471
- dafuli01@ebikeserviceparts.com
BK-2R magnetic hydraulic brake power cut-off sensor solves ebike hydraulic brake detection challenge. Compact ABS sensor + magnet set, stick on hydraulic brake lever via 3M tape. Output switch signal to cut motor power during braking. Support SM2 & custom connectors, customizable cable length.
Hydraulic brake state detection has long been a pain point for electric bicycle systems. Our BK-2R magnetic brake power cut-off sensor delivers a reliable solution for hydraulic brake levers.
This sensor assembly contains a sensor unit and a matched magnet. Both adopt compact size design. Install the sensor and magnet on the hydraulic brake lever with supplied 3M adhesive tape. When you squeeze the brake lever, the relative position between magnet and sensor changes, the sensor outputs switch signal and cuts off motor power to realize braking safety protection.
| Item | Parameter |
|---|---|
| Model | BK-2R |
| Signal Logic | Active: switch off; Inactive: switch on |
| Housing Material | Intensive ABS |
| Sensor Dimension | 26 × 11.5 × 6 mm |
| Magnet Dimension | Φ10 × 3 mm |
| Net Weight | 4g |
| Connector | SM2, customizable other types |
| Packing List | Sensor ×1, Magnet ×1, 3M Adhesive Tape ×2 |
✅ Special for hydraulic brake levers: Solve the difficult detection problem of ebike hydraulic brakes, stable and reliable trigger.
✅ Compact magnetic split design: Small sensor & magnet, easy surface mounting on brake lever with 3M tape, no complex modification.
✅ Clear switch signal: Fixed signal logic, compatible with most ebike controllers for power cut protection.
✅ Durable intensive ABS housing: Good resistance to vibration and daily wear on handlebar area.
✅ Customizable for B2B orders: Support custom connector types, cable length and other special requirements.
Please confirm below details before placing orders:
We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.
It used to take me weeks to hunt down hard‑to‑find e‑bike spare parts. Their compatibility‑check technical support saved me countless repair headaches. Reliable supplier I can always count on.
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We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.
We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.
All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.
Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.
Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.
Sea freight, air freight and rail transport are optional.
Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.
We provide part identification, model matching and full order follow-up support.
