Engine Opening O.D.: 19mmBolt Hole Spacing (engine side) : 48mm (on center)Air Filter Mount: 35mmPZ19 19mm Carburetor Cable Choke Carb for 90cc 110cc Peace Eagle Cool Sport NST Redcat Coolsport Lifan ATV QuadFits for 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go Kart Horizontal Engine,Please check the description and size of items before you make a orderimg alt=”1″ src=”https://m.media-amazon.com/images/S/aplus-media/sc/5ac39360-f82c-4d23-9da4-38147f545dd0.__CR0,0,300,300_PT0_SX300_V1___.jpg”/ ,PZ19 19mm Carburetor Carb With Cable Choke for 110cc 90cc Peace Eagle Cool Sport NST Redcat Coolsport Loncin Honda Clone ATV Quad Parts Engine Opening O.D.: 19mm Bolt Hole Spacing (engine side) : 48mm (on center) Air Filter Mount: 35mm PZ19 19mm Carburetor Cable Choke Carb for 90cc 110cc Peace Eagle Cool Sport NST Redcat Coolsport Lifan ATV Quad Fits for 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go Kart Horizontal Engine,Please check the description and size of items before you make a order