Ferrea E11091 Titanium Intake Valve Retainer Yamaha YZF450 YFZ450

The Ferrea E11091 is a precision-engineered titanium intake valve retainer designed specifically for Yamaha YZF450 motocross bikes (2003-2009) and YFZ450 quad applications (2004-2009) equipped with 5-valve engines. This high-performance retainer is sold as a 2-piece set, providing the components needed for one intake valve assembly.

Key Features:

• CNC-machined from aerospace-quality titanium for maximum strength and durability
• Fully heat-treated and finished to exact tolerances for precise fitment
• 40% weight reduction compared to conventional steel retainers, reducing valvetrain mass
• Improved valve control and stability at high RPM
• Designed for demanding racing and high-performance applications
• Sold as 2-piece set per intake valve

Ferrea Racing Components are trusted by professional motorsports teams and engine builders worldwide. This titanium retainer delivers the strength and reliability required for competitive racing while reducing reciprocating weight to improve throttle response and allow higher engine speeds. Compatible with Ferrea valve springs and locks for complete valvetrain upgrades.