Cylinder Head; 139QMB daelim removes the factory rev limiter

removes the factory rev limiter — allowing your engine to reach higher RPMs and sustain power through the top of the rev range

Excellent quality acrylic

This Blue Line 6-Coil Flywheel is a high-quality replacement designed to restore the magnetic timing and electrical induction necessary for a reliable charging system and consistent spark

CVT Cover (short case): 16 inches

Tubeless construction — no inner tube required

Cylinder Head; 139QMB daelim removes the factory rev limiterThis cylinder head replaces the stock equipment on bikes running 139QMB engines. Don't forget a new gasket (part number 1100 1331) and the valve assembly (part number 1100 1328)! Original Parts For Scooters SKU 151 213 Specifications: Bore: 39mm Exhaust Bolt Hole Spacing: 49. 75mm Intake Bolt Hole Spacing: 44. 75mm Compatibility: 139QMB based 50cc 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA 2 YN139QMB JJ1P39QMB 139FMA 2