This Mahle drop-in piston ring set for a single cylinder is specified at 92.50 mm diameter with top and second rings at 1.2 mm each and a 2.8 mm oil ring as listed. Intended for single-cylinder engine rebuilds, the precision drop-in rings match bore size and ring thickness to restore sealing and oil control without custom fitting during installation.
Mahle MS 92.50 mm1.2 1.2 2.8 mm Drop In Ring - Single Cylinder