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54mm stud-spaced GY6 engine cases (Engine Codes listed below) commonly utilized across a massive variety of street scooters
* 2911326 Kupplungsfedernkit (3 Hardening) 125-500cc scooter for 3-shoe clutch
MALAGUTI PHANTOM MAX 250 4T LC (PIAGGIO M361M)
The ideal bolt-on upgrade for 125cc–150cc GY6 engines and 50cc 4T builds with big-bore kits that need increased airflow and precise fueling
Note: These will not work with the stock Ruckus seat frame
NCY Big Bore Cylinder Kit w/head - 50mm - Honda Dio, Sym DD5 125 54mm stud-spaced GY6 engine casesThe NCY Big Bore Piston and Cylinder Kit is a perfect fit for your Honda Dio, Sym DD50 or 139QMB scooter. It gives you significantly more power and durability at a reasonable price. Specifications: Aluminum piston: 50mm 2 piston rings: 50mm 1 wrist pin with G clips: 42. 2mm x 12mm Cast iron cylinder: 50mm 4 studs with nuts: M6x120mm Compatibility: Honda Dio Sym DD50 139QMB based 50cc 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB
