Oversize measured with piston, not measured actual diameter. Last size to fit in fully defines oversize. Please take into account that the cylinders may need sleeving, boring for 1 or more oversizes to remove all rust/scratches etc. Valves and guides may or may not be installed. fins may or may not be broken. structural damages such as foot or ports will not be present in the cylinders sold. If you want/need pristine cylinders, please use 0000201 reproduction cylinder. FOR EACH OVERSIZE YOU GET A 20 EURO DISCOUNT. WHEN DIFFERENT SIZES ARE PACKED TOGETHER YOU GET 10 EURO PER CYLINDER PER OVERSIZE DISCOUNT.