Trailer Overrun Device

Inertia Overrun Brake Device — Knott and AL-KO Compatible Units from Mr Liu Axle

This section features inertia overrun brake device
for trailers and motorhomes, compliant with European standards ECE R13 / E24.
We manufacture and supply trailer axles
with load capacities ranging from 750 to 3,500 kg, complete with fully assembled braking systems. These units ensure synchronized trailer braking triggered by inertia when the towing vehicle brakes.

Our overrun brake device feature automatic reverse functionality, hydraulic damping, and a manual parking brake.
Their robust galvanized steel construction is designed to withstand Russian operating conditions, including exposure to road salt and temperature fluctuations.
When selecting parts, you can compare market offerings—such as
overrun brakes and trailer brake shoes—
to evaluate the cost-effectiveness of purchasing directly from the manufacturer.

The device are compatible with standard Knott (KF/KFG) and AL-KO (161S/251S/351S) coupling heads.
To complete the braking system assembly, we recommend adding the following items to your order:
brake shoes,
hubs and drums,
and brake cables—
this allows you to acquire a ready-to-use assembly without the need to source additional components separately.

We offer OEM manufacturing of overrun brake device under your own brand:
custom load capacities, logo branding, and adaptation to your specific coupling head.
Minimum wholesale order: 5 units. Return to the main catalog
or request a quote via Email.