This performance 15mm Carburetor is most commonly used for (and not limited to) 2-stroke water liquid cooled pocket bikes, mini dirt bikes and mini quads (ATVs). Also used for some 49cc 2-stroke scooters and smaller buggies/go-karts.
Manifold Inner Diameter: 18.5mm
Breather Inner Diameter: 56.1mm
Breather Outer Diameter: 58.5mm