Universal high performance air filter with rubber cap and round profile, the best on the market for RACER use and Cafè Racer customizations, selected for you by caferace.it Dimensions: External diameter male connection: Ø 19 mm Length: 44 mm Large external diameter : 50 mm Small external diameter: 50 mm Flange: 20 mm Click on the top window (instructions) to see the technical characteristics