Control chain tensioner rail for GY6 50cc motors 139QMB / QMA. This rail has its mounting position in the engine directly at the control chain tensioner and is mounted in the engine housing at the bottom with a screw.
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 BT13875
EAN: 4250362412782