47mm 70cc Racing Cylinder Kit & Head For Vespa 50 S Lx Lxv Primavera College Sprint 50cc Ac 2 Stroke Scooter Engine - Engines Big Bore & Top End Kits - AliExpress
Big Bore Kit 50cc Scooter | Cylinder Kit 50cc Scooter 2 - Engines Big Bore & Top End Kits - Aliexpress