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Pro X Steel Valve/Spring Kit Yamaha YFZ 450
SKU: 1275120002*
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Overview
21-4N Stainless Steel Valves for increased durability and less wear under extreme conditions.
Black Nitrided valves offer high micro hardness while super smooth surface finish reduces friction between stem and guide.
Special designed valve springs deal with the extra weight of the Stainless Steel valves.
Springs are made from premium Chrome Vanadium Steel for higher performance and durability at high rpm.
Fully rebuildable utilizing your OEM retainers, bases and seals without the need of any further engine modifications.
Comes as complete package of either all intake valves and springs or all exhaust valves and springs.
Black Nitrided valves offer high micro hardness while super smooth surface finish reduces friction between stem and guide.
Special designed valve springs deal with the extra weight of the Stainless Steel valves.
Springs are made from premium Chrome Vanadium Steel for higher performance and durability at high rpm.
Fully rebuildable utilizing your OEM retainers, bases and seals without the need of any further engine modifications.
Comes as complete package of either all intake valves and springs or all exhaust valves and springs.
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