Universal high performance air filter with round profile rubber cap, the best on the market for RACER use and Cafè Racer customizations, selected for you by caferace.it Dimensions: Ø: 54 mm Length: 127 mm Large external diameter: 90 mm Diameter small outside: 90 mm Flange: 25 mm, 5 deg Click on the top window (instructions) to see the technical characteristics