Online-store : S3 STARS Cylinder Head Inserts For GAS GAS PRO125

S3 S3 STARS Cylinder head inserts for GAS GAS PRO125
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Change compression of your S3 STARS cylinder head on your GG PRO125... There are 4 available....VERY HIGH(AA), HIGH(A), STANDARD(STD) and 'FLAT' compression inserts available. The flat one is for you too machine yourself!