PARMAKIT “Sixty Six” W-force 175 cc 66 mm Vespa PK/special/ET3/Primavera

-7 Transfer ports !

-For use with 110 mm con rod / 51 mm stroke

– Ø 66 aluminium cylinder – coat with nickel
– Ø 37 intake manifold
– “integral” head with side spark plug hole
– 8 petals inlet valve with flow guide
– Forged Vertex piston with one steel piston-ring