Steering chain guide rail for GY6 50cc motors 139QMB / QMA. This rail has its mounting location in the engine opposite the control chain tensioner and is interposed between the cylinder and the cylinder head.
In the case of porous or cracked rubber, this component should always be replaced in order to avoid damage to the motor.
Manufacturer Nr.: 101 Octane BT13874
EAN: 4250362412775