1) 49cc dirt bike,pocket bike carburetors. 2)High performance 3)good price 1)Europe type motorcycle carburetor,fit for 2stroke 30cc~ ... of mixed chamber: 13mm.3)Installation size:38±0.1 4) Supply all kinds of carburetors, carburetor parts, ... Features:1.strong. energy-saving,low_pollution2.Low cost, competitve price3.Resonable and strict QC management4.Japanese standard. 47cc pocket bike carburetor