Custom Performance. Power How You Want It. 
Our Downdraft Carburetor Kits are engineered for riders and builders who demand a custom-fit solution for unique engine configurations. Whether you’re running drag bikes, speedway machines, or kart engines, each kit is built-to-order using components from our proven product lines.

Available in sizes 34, 36, 38, 40, 44, 48, 52–50, 52, 54, 56, 58mm these carburetors scale with your performance needs. Models 48mm and larger are CNC-machined from billet aluminum for maximum durability. With each size, there includes an option of our 45° or 90° Downdraft carburetors. 

Every kit is configured around your engine’s dimensions, displacement, and performance goals. After a quick measurement and setup process, we assemble and ship a complete kit tailored specifically to your build.

🏁 Ideal For: Kart racers, drag racers, and speedway riders who need a high-quality, race-ready carburetor that delivers consistent performance.

*For Drag Racing and Karting Use Only

Images are for illustration purposes only, actual products may differ.

NB:

Pease note that because we sell across multiple platforms, stock availability cannot be guaranteed. If an ordered item is out of stock, it will be placed on backorder and dispatched as soon as it arrives. If an item is permanently unavailable, we will issue a full refund.

Additionally, as most of our products are imported, final pricing is subject to change without notice due to fluctuating exchange rates and shipping costs.

We appreciate your understanding and always strive to process and ship your orders as quickly as possible!