Hello! i have an airsal 66mm cylinder wich is alu nikasil plated and the piston that come with is a special vertex piston with no hole in the skirt, really not familiar . The rings seems to be made of a different material than regular oem and are also larger (surface on cylinder wal), i cant find the piston anywhere on internet ,airsal,vertex, la sleeve....my question is if i use a regular piston did the "stock" rings can damage the nikasil plating?? And if yes,where the hell i can find this special vertex piston??
