Engine
Active filters
Resists sealant build-up to prevent clogging, oversize stem for high-volume flow, and a removable two-piece valve for easy cleaning. Short and long stem fitments available.
Presta-compatible tubeless valve set with oversize stem for fast inflation and easy pressure control.
Two-piece body and removable core for quick cleaning; available short (16–24 mm) and long (23–31 mm) stems.
Prevents sealant clogging, oversize stem for fast inflation, removable valve for easy cleaning, available in short and long stem lengths.
- Resists sealant build-up and clogging at the valve for cleaner maintenance.
 - Oversize stem for higher flow, faster inflation, and easier pressure control.
 - Two-piece body with removable core for easy cleaning.
 - Short 16–24mm and long 23–31mm stem lengths for wide rim compatibility.
 
State-of-the-art compression release valves that reduce hot starts and lower starter and battery loads. Sold as a set and made in the U.S.A.
State-of-the-art design to reduce hot starts and starter/battery loads. Custom molded knobs, sold in pairs, made in the U.S.A.
Made to exact tolerances; does not include oil holes; made in USA.
- Made to exact tolerances for OE-style fit and wear.
 - Made in the USA.
 - Does not include oil hole(s); must be drilled after installation.
 
Stellite-tipped stainless-steel valve nitrided for improved wear resistance, corrosion protection, and reduced friction.
Designed for HD® Evolution OEM replacement. Machined from high‑grade metal with a corrosion‑resistant dark finish. Multipurpose alignment pins. Made in the USA.
High-density powdered metal valve seats for superior wear resistance and thermal stability. Tested for track and street use.
Stellite-tipped nitrided valve for improved wear resistance, reduced friction, and corrosion protection. Made in the USA.
- Precision-machined bronze construction for durability
 - Tapered nose to reduce port obstruction and improve flow
 - Compatible with unleaded fuel and a range of valve‑stem materials
 - Accepts top‑hat valve seals (sold separately)
 - Made in the USA
 
Precision-machined, compatible with no-lead fuel and all valve-stem materials; accepts special valve guide seals (sold separately); made in the USA.