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.

Model Compatibility :


SYM Fiddle II 50 4T 2008
SYM Fiddle II 50 4T 2009
SYM Fiddle II 50 4T 2010
SYM Fiddle II 50 4T 2011
SYM Fiddle II 50 4T 2012
SYM Fiddle II 50 4T 2013
SYM Fiddle II 50 4T 2014
SYM Fiddle II 50 4T 2015