Torque. Control. Simplicity.
The BILLETRON HD-X Series is purpose-built for Harley Davidson and similar large-displacement engines, delivering strong low-end torque, clean throttle response, and minimal tuning. The HD-X supports up to 96ci engines, while the HD-X+ is optimized for high-output builds up to 124ci with a custom larger bore for increased airflow.

With three precision fuel circuits — the externally adjustable Idle Fuel Control, Xcelerator™ Metering Rod, and Power Jet — this carburetor gives you total control over fuel delivery while remaining incredibly easy to set up and ride.

🏁 Who It’s For:

Street riders and builders who want bolt-on power, smooth control, and zero jetting hassle — whether you’re cruising a stock 96ci or pushing a 124ci big-bore build.

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!