Blue Line Valve Rocker Arm Assembly: 64mm 139QMB Type 1 chinese "description": "This performance exhaust for

"description": "This performance exhaust for your Buddy 125/150/170i delivers an aggressive

High-temperature compound delivers better stopping efficiency and heat tolerance than stock pads — ideal for heavy use and track days

E-Ton many models (front/rear)

Connects the carburetor to the cylinder head

Blue Line Valve Rocker Arm Assembly: 64mm 139QMB Type 1 chinese "description": "This performance exhaust forKeep your 139QMB engine running smoothly with this OEM two valve rocker arm assembly from Blue Line Designed specifically for Type 1 engines with 64mm valve stems and a shorter cylinder head, this is a direct fit replacement that restores proper valve actuation and engine timing without modification. Not sure which type you have? Type 1 engines have 64mm valve stems and a shorter head. If your valve stems measure 69mm with a taller cylinder head, you