PROX Titanium Exhaust Valve - Manufacturer part number: 28.2453-1
This replacement part for motocross engines is a titanium exhaust valve from PROX, a material recognized in the motorcycle industry for its excellent strength-to-weight ratio. Designed to function within the cylinder head and in contact with the valve seat, it is aimed at riders and mechanics looking to equip their engine with competition-specific components.
- Brand: PROX
- Category: Valves
- Material: Titanium
- Universe: Motocross
The valve is machined to maintain tolerances compatible with motocross applications and the high RPMs encountered in competition. Titanium provides a reduced mass compared to steel, which influences the moving masses in the distribution system. To ensure proper engine operation, check the condition of the seats, the valve clearance, and install according to manufacturer recommendations or consult a qualified workshop.
Main Compatibility:
- YAMAHA YZ 450 F (2026 - 450 cc)
- YAMAHA YZ 450 F (2025 - 450 cc)
- YAMAHA YZ 450 F (2024 - 450 cc)
This product is intended for motocross use: please check the part number before installation to ensure perfect compatibility with your model.
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