cylinder head Venandi for engine conversion M500 50ccm for Simson KR51/1 Schwalbe, SR4- Star

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With this special design, it is possible to exchange engines of the older generation (M53-M54) for the newer series (M531-M742). Without changes to the frame, the engine can be mounted to the cylinder head like before. This cylinder head has a combustion chamber diameter of 40mm. To use a 60cc cylinder (or larger), the cylinder head must still be adapted.