Special high performance universal air filter with D-shaped rubber cap, the best on the market for RACER use and Cafè Racer customizations, selected for you by caferace.it Dimensions: Ø: 44 mm Length: 87 mm Large external diameter: 100X75 mm Small external diameter: 67X52 mm Flange: 16 mm Click on the top window (instructions) to see the technical characteristics