Malossi large, single-layer racing air filter with very high flow rate and oval design. Fine pore polyurethane foam also provides excellent filtering. Supplied adapter allows for connection with 42mm, 50mm and 58.5mm carbs (Dellorto, Mikuni, Keihin PWK, Koso, OKO, Stage6) This filter requires sufficient space; dimensions: 13x12cm. Performance-oriented and great look. For increased filtering performance and wet weather protection, we recommend using air filter oil.