Yamaha Jog / Horizontal Minarelli Top Performance Black Trophy 40mm "50cc" Cylinder Kit cooler Pretty basic port map but

Pretty basic port map but should give a solid boost to your Vespa

Comes with a single filament 6v21w bulb

Now in black

Doppler ER1 ball joint for Motobecane mopeds

Nice replacement crankshaft from Airsal

Yamaha Jog / Horizontal Minarelli Top Performance Black Trophy 40mm "50cc" Cylinder Kit cooler Pretty basic port map butTop Performance Black Trophy 40mm 50cc cylinder kit for Yamaha Jog and other scooters powered by the Horizontal Minarelli engine. High quality, cast iron replacement cylinder kit. Ideal alternative to replacement stock cylinders in order to both increase power output while remaining reliable. Teflon coated, 2 ring, piston with 10mm wrist pin. High compression, o ring head. Comes with cylinder, piston, rings, pin clips, gasket set, and high compression