Air filter d=28-57mm length 145mm Big Evolution Polini

The Polini power filters are high-flow filters that provide excellent air intake and prevent dust from entering the interior.

They feature two sponge densities, which help retain external agents that we do not want to enter the engine.

An extra-large filter; with a length of 160mm and a diameter of 145mm. The kit is shipped with adapters of 32mm, 41mm, 45mm, 49mm, and 57mm in diameter. This way, the Polini “Big-Evolution” filter fits almost all carburetors, such as DellOrto, Keihin, PWK, Mikuni, and KOSO carburetors.

Note: When changing the air filter, the carburetor must be readjusted.