Right Crankcase; 139QMB metropolitan allowing your engine to breathe

allowing your engine to breathe deeper and rev higher

62P Rating: 93 mph speed rating with 584 lb load capacity at 40 PSI

ISO 9001-certified manufacturing — Vee Rubber

SSR Motorsports

Right Crankcase; 139QMB metropolitan allowing your engine to breatheThis right side crankcase replaces the stock equipment on 139QMB bikes. Original Parts For Scooters SKU 151 129 Specifications: Uses a 33 tooth oil pump, available online 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 QMB models Don't see your engine listed? If the engine code includes "QM" or "FM", this product