K+N replacement filters are made of resistant washable cotton material. Increased air flow for optimum power delivery. The long service life means the filter often pays back for itself quickly. Height 140 mm, outer diameter 89 mm, internal diameter 51 mm. Quantity of oil required after cleaning: 12 ml. Weight 500 grammes. As a replacement for Ducati OEM 42610191A and 42610251A.