Ferrea 04-05 Honda TRX 450 15.10mm ID 75lbs at 37mm Seat Pressure Single Valve Springs - Set of 4

If you're rebuilding the top end of your 04-05 Honda TRX 450, getting the right valve springs is key. These single valve springs from Ferrea are designed to handle the demands of performance engine work, ensuring your valves close reliably under increased stress. They offer 75 pounds of pressure at a 37mm installed height, which is a solid specification for many modified ATV engines.

Ferrea is known for making well-built engine components, and these springs are no exception. They feature a 15.10mm inner diameter, a common size that fits many stock and aftermarket valve guides. When you're putting an engine back together, especially one that's seen some use or is being built for more power, using reliable valve springs like these helps ensure consistent valve train operation and longevity.