This 38mm, 50cc high compression cylinder head works with all ZA50 and E50 engines found on various Puch engine mopeds like the maxi, magnum, swinger, pinto, freespirit and many others. Also works on all Tomos A3, A35 and A55 Engines.
Tech Tip: With increased compression temperatures will be raised. Make sure to run a colder spark plug than stock. Higher the number the colder the plug. B7HS=Colder, B8HS= Colder, Etc.