HENGJIAN brake arm assy S7-Z300-22.2-03 (3)

OEM-style brake arm assembly for the Hengjian Z300 off-road motorcycle platform, designed to restore precise rear brake control and reliable actuation.

Main features

Original-type HENGJIAN brake arm assembly matched to the Z300 chassis geometry.
Ensures smooth, consistent operation of the rear disc brake system.
Factory-style construction for durability in off-road use.
Supplied as a complete brake arm unit for straightforward replacement of the original assembly.

Technical details

Manufacturer	HENGJIAN
Part type	Brake arm assembly for rear brake system
OEM reference	S7-Z300-22.2-03 (3)
Vehicle platform	Hengjian Z300 / S8-Z300 off-road motorcycle family
Brake system	Rear disc brake actuation linkage
Packaging	One complete brake arm assembly unit

Function in the brake system

The brake arm assembly forms the mechanical link between the rider's rear brake input and the rear disc brake geometry and rigidity of the arm are essential for accurate brake modulation, predictable pedal travel and consistent feedback at the footpeg.

Typical use cases

Replacement of a bent, worn or damaged original brake arm on Hengjian Z300 models.
Chassis rebuilds where the rear brake actuation components are renewed to factory specification.
Preventive maintenance on intensively used off-road motorcycles to maintain crisp, reliable braking response.

Using an OEM-style brake arm assembly matched to the Hengjian Z300 platform helps maintain the designed leverage ratio, pedal travel and overall braking characteristics intended by the manufacturer.

Specification