The PROX titanium exhaust valve is designed for demanding motocross riders who are preparing their engine. Combining strength and lightness, it provides mechanical stability suited for high RPMs while reducing the moving mass of the valvetrain. Ideal for engine preparation, this valve contributes to a sharper mechanical response without unverified technical claims.
- Material: titanium — maximum strength and reduced weight
- Machining: forged from a single piece for a homogeneous structure
- Treatment: plasma coating for better thermal resistance and increased longevity
- Usage: recommended for engine preparation (motocross/competition)
- Packaging: delivered individually
- Manufacturer reference: 28.4424-2
Before installation, check the condition of the valve seats and have the valvetrain adjustments performed by a professional to fully leverage the qualities of titanium. Compatible with off-road and track use, this PROX valve is a reliable and lightweight choice for those seeking dependability on their KX 450 (2025-2026 models) and other similar motocross machines.
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