Shared Bicycle Drum Brake Hub RS485 Bike Brake Lock Bike

The 80 mm Drum Brake Hub Lock is designed for shared bicycle fleets, shared e-bikes and OEM mobility platforms that need brake, lock and speed sensing functions integrated into the wheel hub. Using ZS3702 and ZS3704 as reference models, this configuration direction focuses on 80 mm drum brake hub lock matching for shared fleet vehicles.
For shared bicycles and fleet vehicles, the hub lock must support reliable outdoor operation, vehicle-side smart control and wheel movement detection while fitting the correct front or rear wheel structure. The ZS3702 and ZS3704 directions allow OEM teams to select front hub replacement or rear hub replacement according to the vehicle architecture.
Both reference models use the same 80 mm drum brake hub lock platform and support speed-aware electronic lock logic through standard 4-magnet sensing. The final selection should be based on wheel position, O.L.D., spoke specification, axle matching and the fleet operator's anti-theft strategy.

• 80 mm Drum Brake Hub Lock: Integrates drum brake, smart lock and speed sensing in one hub direction.
• Shared Bicycle Fleet Focus: Designed for shared bikes, shared e-bikes and rental mobility platforms.
• ZS3702 Front Hub Direction: Suitable for fleet platforms requiring front wheel hub replacement.
• ZS3704 Rear Hub Direction: Suitable for fleet platforms requiring rear wheel hub replacement.
• 4-Magnet Speed Sensing: Supports vehicle-side wheel movement detection for smarter lock control.
• Smart Vehicle-Side Control: Works with main controller, IoT or battery-side systems using source-listed interfaces.
• IPX7 Complete-Unit Protection: Suitable for outdoor shared fleet operation and wet environments.
• OEM Wheel Matching Required: Wheel structure, O.L.D., spoke specification, axle matching and brake layout should be confirmed before sampling.

The hub lock integrates an 80 mm drum brake structure with electronic lock control. When the vehicle system sends a command, the lock performs lock or unlock operation while the wheel hub remains part of the braking and wheel assembly.
The configuration value is front or rear hub matching. ZS3702 is used when the shared fleet platform requires front wheel security, while ZS3704 is used when rear hub replacement better matches the vehicle structure.
For OEM teams, the main decision points are wheel position, O.L.D., spoke specification, axle matching and brake layout. Speed sensing and waterproof protection support outdoor fleet operation without changing the source-listed parameters.

This 80 mm drum brake hub lock direction is suitable for shared bicycle fleets, shared e-bikes, rental bicycles and fleet mobility vehicles that require integrated wheel locking, braking and speed sensing.
It is especially useful for OEM projects comparing front and rear hub lock layouts before selecting a final wheel architecture for shared mobility operation.

Before sampling or production, confirm front or rear wheel structure, frame spacing, O.L.D., spoke specification, axle matching, brake layout, voltage, communication protocol, speed sensing logic and waterproof requirement.

Q: What is the main configuration focus of this product page?
A: It focuses on 80 mm drum brake hub lock selection for shared bicycle fleets and OEM mobility projects.
Q: Which reference models are used?
A: The page references ZS3702 and ZS3704 in the Drum Brake Hub Lock series.
Q: How are ZS3702 and ZS3704 different?
A: ZS3702 is the front wheel hub replacement direction, while ZS3704 is the rear wheel hub replacement direction.
Q: Does it support speed sensing?
A: Yes. The reference parameters list standard 4 magnets per ring, evenly distributed.
Q: What communication interfaces are supported?
A: The reference parameters list UART, RS485 and CAN communication.
Q: What should be confirmed before installation?
A: Confirm front or rear wheel structure, O.L.D., spoke specification, axle matching, brake layout, voltage and protocol.