555cc Big Bore Kit. 999 027. All 504 Engine Variants.
Kit comprises of:
Sportax 555 Piston Kit. Includes Rings, Circlips and Pin
Cylinder Head O Ring
Cylinder Head O Ring Brace
We can remove and fit your new liner and rebore to the correct size for an extra £150
Cylinders can be powder coated satin black for an extra £50.
Please email or call for further info regarding your new 555cc upgrade kit.