KFX450R CV4 Valve Spring Retainers

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  • Lightweight CNC-machined titanium retainers greatly reduce valvetrain mass and increase engine RPM
  • Increases valve spring life over heavier, stock steel retainers
  • Use in conjunction with most stock springs and all of CV4’s racing valve springs
  • When used with Xceldyne’ machined valve locks, you have a perfect retainer/lock/stem fit for unprecedented high-rpm valve train control
  • Sold as a kit of 4
Price: $159.95