Blue Line Rocker Arm Assembly (Type 2, 69mm); 139QMB Benelli TNT 135 537 piston 40

537 piston 40

self-lubricating nylon that resists heat and friction better than standard rollers — no grease required

SR R Factory (piaggio engine)

and smoother operation across your entire power band

Eliminate the frustrating off-the-line bogging and sluggish mid-range response native to factory 50cc setups with the race-bred Malossi Multivar Performance Variator

Blue Line Rocker Arm Assembly (Type 2, 69mm); 139QMB Benelli TNT 135 537 piston 40This 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). Original Parts For Scooters SKU 151 282 Specifications: Height: 26mm For use with 69mm valves Compatibility: 139QMB based 50cc 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA 2 YN139QMB JJ1P39QMB 139FMA 2 BD1P39QMB BN139QMB 147QMD Other QMA models Other