Sports air filter - for Simson S50, S51, S53, S70, S83

Sports air filter - top solution for an unobtrusive sports air filter - exact fit on the middle of the housing, so no unfiltered air gets into the combustion chamber - nothing needs to be changed or made on the middle of the housing - the filter is designed in such a way that nothing stands in the way of the air flow - Sufficient air passage for carburettors up to 30mm in diameter - more space than any round air filter (filu or various self-made) - support plate made of stainless steel - easy cleaning with water or compressed air - easy assembly, easy to install against the retaining plate of the standard air filter Replaced Note: Use filter oil before first use and after cleaning. Changing the air supply may require adjustment work on the carburetor. For use on S53 and S83 with plastic side cover, the metal tab must be cut off. In the first DDR original heart boxes there is an additional nose in the upper left corner. This must be sanded down or a modern replica heart box must be used.