Blue Line Rocker Arm Assembly (Type 2, 69mm); 139QMB Keihin Includes: Pair of shoes +
Yard notes & kiln story
Description
Blue Line Rocker Arm Assembly (Type 2, 69mm); 139QMB Keihin Includes: Pair of shoes + Includes: Pair of shoes + OEM style tension springs Standard 2nd gear for vintage Vespa small frame scooters with manual transmission This rocker arm assembly is for Type 2 139QMB engines that use a 69mm length valve stem and a taller head (Type 1 engines have a shorter head and 64mm length valve stem) About Blue Line: About Blue Line: Blue Line offers OEM equivalent replacement parts for on road scooters