Key features: Universal modifications Quicker acceleration Saves fuel Best sales service Specifications: Body branding: MAIKUNI Material: Aluminum Style: PWK Chrome Model Color: Bright black Fit for: Most Of ATV ,Motorcycle,Scooters,Dirt Bike. Size Information: 21 mm: 50cc to 100cc engine 24 mm: 50cc to 100cc engine 26 mm: 75cc to 125cc engine 28 mm: 75cc to 125cc engine 30 mm: 100cc to 150cc engine 32 mm: 125cc to 200cc engine 34 mm: 125cc to 250cc engine Note:Fits on 4T 50cc to 300cc engines 1) Fits on 4T 50cc to 300cc engines (1/2/4 cylinder motors are universal) 2) You can purchase a carburetor 50cc higher or lower than your original to save gas and ride faster. 3) You can choose the size and body name you need. 4)Replaces existing Carburetor, Just replace and ride again. Give your machine the new power and torque it really deserves, and have more fun with the power at your finger tips. Factory outlet, after the purchase is completed, it will be shipped within 24 hours