Product Description
Anti-Lock Servant Brake Lock With 30RPM Protection For Shared
E-Bikes
Product Overview
The Anti-Lock Servo Drum Brake Lock is designed for shared e-bikes,
shared bicycles and fleet mobility vehicles that need rear wheel
braking, electronic lock control and safer anti-lock protection in
one compact rear hub assembly.
ATL3733 integrates a rear drum brake structure with a smart locking
module. The lock can receive commands from the vehicle controller,
IoT module or battery-side system, allowing the vehicle platform to
manage lock and unlock actions remotely. Its hidden rear hub
installation helps reduce exposed locking parts and supports
cleaner vehicle design for public-use mobility projects.
Compared with standard brake-lock configurations, ATL3733 adds
stronger safety-oriented control through 4-magnet speed sensing and
mechanical safety-speed protection. This makes it suitable for
shared e-bike projects where wheel movement detection, remote
operation and anti-lock logic are important for daily fleet use.
Key Features
Anti-Lock Servo Brake Lock: Combines rear drum braking and electronic smart lock control for
shared mobility vehicles.
30 RPM Mechanical Safety Protection: Adds mechanical safety-speed logic, with actual vehicle speed
related to wheel diameter.
4-Magnet Speed Sensing: Supports wheel movement detection for safer lock control.
I2C-Ready Communication: Supports UART, RS485, CAN and I2C for vehicle-side integration.
Rear Hub Integration: Designed for left-side rear hub or rear motor installation.
Remote Lock Control: Works with controller, IoT or battery-side systems.
IPX7 Lock-Core Protection: Suitable for outdoor operation, rain and routine washing
conditions.
Fleet Mobility Use: Built for shared bikes, e-bikes, rental vehicles and public-use
platforms.
Technical Parameters
| Parameter | Specification |
|---|
| Product Name | Anti-Lock Servant Brake Lock |
| Model | ATL3733 |
| Product Category | Bike Drum Brake |
| Product Type | Servo Brake Lock / Following Drum Brake Lock |
| Mounting Position | Left Side Of Rear Hub / Left Side Of Rear Motor |
| Voltage | 5V-60V DC |
| Communication | UART / RS485 / CAN / I2C |
| Power Source | Main Controller / IoT / Battery |
| Electronic Protection Speed | Defined According To Customer Requirements |
| Speed Sensing Solution | Standard 4 Magnets Per Ring, Evenly Distributed / Customizable By
Requirement |
| Torque Resistance Test | ≥160 N.m |
| Mechanical Safety Lock Speed | 30RPM, Actual Speed Related To Wheel Diameter |
| Hub Spoke Specification | Not Including Hub |
| O.L.D. | Not Including Hub |
| Axle Hole Diameter | 10 mm |
| Axle Specification | Not Including Axle |
| Main Axle Load Strength | Not Provided |
| Brake Diameter | 100 mm |
| Brake Interface / Braking Performance | Servo Brake, Complies With ISO 4210-2015 |
| Operating Temperature | -30°C To 65°C |
| Waterproof Rating | IPX7 Lock Core |
| High Temperature Storage | 85°C ± 2°C For 48 Hours |
| Low Temperature Storage | -40°C ± 2°C For 48 Hours |
| High Temperature And Humidity | 65°C, 95%RH, 48 Hours |
| Salt Spray Test | 72 Hours, Neutral |
Technology / How It Works
ATL3733 works by combining a mechanical drum brake structure with
an electronically controlled locking module. When the vehicle-side
system sends a command, the lock performs the corresponding lock or
unlock action while remaining integrated with the rear wheel brake
assembly.
The 4-magnet speed sensing structure helps the vehicle system
detect wheel movement status before locking. Together with the 30
RPM mechanical safety-speed protection, ATL3733 provides an
additional safety layer for shared e-bike and fleet vehicle
applications.
For OEM projects, ATL3733 is especially useful when the vehicle
requires compact rear hub integration, remote smart lock control,
speed-aware locking logic and reduced external lock exposure.
Applications
ATL3733 is suitable for shared e-bikes, shared bicycles, rental
mobility vehicles and fleet platforms that require rear wheel
braking, electronic locking, speed sensing and anti-lock safety
logic.
It is especially suitable for public-use vehicles where operators
need remote lock control, rear wheel anti-theft protection, vehicle
status feedback and compact rear hub integration.
OEM / Service Support
Before sampling, OEM customers should provide rear hub structure,
frame drawings, wheel size, brake layout, axle hole requirement,
voltage platform, communication protocol, controller or IoT
interface, speed sensing requirement, waterproof requirement,
vehicle weight, load condition and target operating environment.
Lofandi can support technical matching, drawing confirmation,
sample preparation and project validation.
FAQ
Q: What is the main advantage of ATL3733?
A: ATL3733 combines rear drum braking, smart lock control, 4-magnet
speed sensing and 30 RPM mechanical safety-speed protection.
Q: Where is ATL3733 installed?
A: It is installed on the left side of the rear hub or rear motor
area.
Q: What communication interfaces are supported?
A: UART, RS485, CAN and I2C are supported.
Q: Does ATL3733 support speed sensing?
A: Yes. It uses a standard 4-magnet speed sensing structure, and
the sensing solution can be customized by requirement.
Q: What should OEM customers confirm before sampling?
A: Confirm rear hub layout, axle hole size, brake diameter, wheel
size, voltage, communication protocol, speed sensing logic,
waterproof requirement and operating conditions.
