Lightweight Anti-Lock Expansion Brake Lock For Shared E-Bikes
| Model: | ABSS3716 | Application: | Shared E-Bikes And Fleet Vehicles |
| Voltage Range: | 5V–60V DC | Communication Interface: | UART / RS485 / CAN / I2C |
| Power Source: | Controller / IoT / Battery | Speed Sensing: | 3 Magnets Per Ring |
| Torque Resistance: | ≥160N·m | Brake Diameter: | 95 Mm |
| Waterproof Rating: | IPX7 | Mounting Position: | Rear Hub Left Side / Rear Motor Left Side |
| High Light: | lightweight expansion brake lock,lightweight bike rear drum brake,i2c expansion brake lock |
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The Lightweight Anti-Lock Rear Drum Brake Lock is designed for shared e-bikes, rental bicycles and fleet mobility vehicles that require compact rear-wheel locking, safer brake control and reliable outdoor operation. The ABSS3716 version uses a 95 mm drum brake lock structure and is positioned as the lightweight model in the anti-lock rear drum brake lock series.
This product integrates rear drum brake locking, electronic control and mechanical anti-lock protection into one compact assembly. It can work with the vehicle controller, IoT module or battery system, allowing fleet operators to manage lock and unlock functions through the vehicle-side control platform. With 5V–60V DC voltage compatibility and support for UART, RS485, CAN and I2C communication, it can be adapted to different shared mobility electrical systems.
The built-in speed sensing solution uses 3 magnets per ring, helping the vehicle system identify wheel movement status before executing lock control. Combined with IPX7 lock-core waterproof protection and rear hub left-side or motor left-side mounting, ABSS3716 is suitable for outdoor, high-frequency shared e-bike applications.

- Lightweight 95 mm Design: Compact rear drum brake lock structure for shared e-bike applications.
- Mechanical Anti-Lock Protection: Helps reduce the risk of unsafe locking during wheel movement.
- 3-Magnet Speed Sensing: Supports wheel movement detection for safer electronic control logic.
- Wide Voltage Compatibility: Supports 5V–60V DC vehicle electrical systems.
- Multi-Protocol Interface: Compatible with UART, RS485, CAN and I2C communication.
- IPX7 Lock-Core Protection: Suitable for rain, washing and outdoor fleet operating environments.
- Rear Wheel Integration: Designed for rear hub left-side or motor left-side installation.
- Fleet Operation Ready: Built for shared e-bikes, rental bikes and urban mobility platforms.
ABSS3716 works by combining mechanical brake locking with electronic control. When the vehicle system sends a lock or unlock command, the lock receives the signal through the controller, IoT module or battery-side system and performs the corresponding action.
The anti-lock mechanical structure is designed to improve riding safety by helping prevent improper locking when the wheel is still moving. The 3-magnet speed sensing configuration provides wheel movement information to the vehicle system, allowing the electronic protection speed to be defined according to the customer’s control strategy.
Compared with ordinary mechanical brake locks, this smart rear drum brake lock provides better integration for fleet management. It supports remote operation, vehicle status feedback and safety-oriented control logic, making it suitable for shared mobility vehicles that need both anti-theft protection and stable field operation.
- 95 mm rear drum brake lock structure.
- 3 magnets per ring speed sensing design.
- ≥160N·m torque resistance test.
- 30RPM mechanical safety locking speed, related to wheel diameter.
- 10 mm / 12 mm axle hole options, subject to actual drawing.
- Rear hub left-side or motor left-side mounting.
- IPX7 lock-core waterproof protection.
- Designed for shared e-bikes and fleet vehicles.
- Compatible with controller, IoT and battery-side power supply.
| Parameter | Specification |
|---|---|
| Product Name | Lightweight Anti-Lock Rear Drum Brake Lock |
| Model | ABSS3716 |
| Product Category | Bike Rear Drum Brake |
| Voltage | 5V–60V DC |
| Communication | UART / RS485 / CAN / I2C |
| Power Source | Controller / IoT / Battery |
| Electronic Protection Speed | Customizable |
| Speed Sensing Solution | 3 Magnets / Ring |
| Torque Resistance | ≥160N·m |
| Mechanical Safety Locking Speed | 30RPM, Related To Wheel Diameter |
| Spoke Hole | Not Included In Hub |
| Product O.L.D. | Not Included In Hub |
| Axle Hole Size | 10 mm / 12 mm, Subject To Actual Drawing |
| Hub Axle | Not Included |
| Main Axle Load Strength | None |
| Brake Diameter | 95 mm |
| Braking Performance | ISO 4210-2015 |
| Operating Temperature | -30℃–65℃ |
| Waterproof Rating | IPX7 Lock Core |
| High Temperature Storage | 85℃ ± 2℃, 48h |
| Low Temperature Storage | -40℃ ± 2℃, 48h |
| High Temperature And Humidity | 65℃, 95%RH, 48h |
| Salt Spray Test | 72h Neutral |
| Mounting Position | Rear Hub Left Side / Motor Left Side |

ABSS3716 is suitable for shared e-bikes, rental bicycles, fleet mobility vehicles and urban electric bicycles that require compact rear-wheel lock control. It is especially useful for projects that need a lightweight 95 mm rear drum brake lock with speed sensing, IPX7 waterproof protection and smart vehicle-side integration.
For fleet operators, this model helps improve anti-theft control and remote vehicle management. For OEM brands, it provides a compact anti-lock rear brake lock solution that can be matched to different controllers, IoT systems and rear wheel structures.
Before sampling or production, confirm the rear wheel structure, brake diameter, axle hole size, installation clearance, controller communication protocol, speed protection logic, waterproof requirement and target market compliance documents.
| Question | Answer |
|---|---|
| What is the main application of this product? | ABSS3716 is suitable for shared e-bikes, rental bicycles and smart fleet vehicles that need rear-wheel brake locking and vehicle-side electronic control. |
| How should this SKU be positioned during upload? | ABSS3716 should be uploaded as the lightweight 95 mm model. Its key difference is 3 magnets per ring with >=160 N.m torque resistance. |
| What is the installation position? | The product is installed at the rear wheel center hub area, on the rear hub left side or rear motor left side. It locks the rear wheel and also integrates rear-wheel braking function. |
| How does the Anti-lock function help safety? | The product combines Hall speed sensing, electronic protection speed logic and patented mechanical Anti-lock protection to reduce the risk of improper locking while the wheel is moving. |
| What should be confirmed before sampling? | Confirm brake diameter, rear hub or rear motor structure, axle hole size, installation clearance, voltage, communication protocol, speed sensing requirement and controller lock logic. |
| Can it work with IoT fleet systems? | Yes. It can be powered by the controller, IoT module or battery system and supports UART, RS485, CAN and I2C communication options. |
| What testing or outdoor-use points matter to buyers? | IPX7 lock-core waterproof protection, operating temperature, high/low temperature storage, humidity test and 72-hour neutral salt spray test should be shown for fleet durability evaluation. |
| Does the product include the hub or axle? | No. The parameter source lists spoke hole, O.L.D. and hub axle as not included. Final mechanical matching should follow the project drawing. |
| Can RoHS / REACH be published directly? | Only if final compliance documents are confirmed. Until then, keep certification wording as To Be Confirmed. |