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■商品番号XSSM43000■商品概要LOCATION：Exhaust，IntakeMADE IN THE U．S．A．：YesMATERIAL：SteelPACKAGING：5-packSPECIFIC APPLICATION：YesTYPE：Spring Seat■適合車種▼YAMAHAWR450F 2003 - 2011 YZ450F 2003 - 2009 ■詳細説明SPRINGS・Designed for use with most cam grinds・Springs can only be used on titanium valves・Purpose built racing valve springs made from the highest quality Kobe spring wire・Sold as pairs unless noted・Single spring， low drag design increases horsepowerSPRING RETAINERS・Sold as pairs unless noted・PART #0926-0537 is a complete intake／exhaust kit・Increases valve spring life over heavier， stock steel retainers・Lightweight CNC machined titanium retainers greatly reduce valvetrain mass and increase engine rpmSPRING SEATS・High tolerances ensure seats are flat for the longest possible life・Precision CNC machined from 8620 case hardened steel・Made with various thicknesses・Sold as pairs unless noted・Pad is parallel to bottom surface for consistent spring pressures・Specially designed for use with CV4’s valve springs onlyVALVE LOCKS・Design allows keepers to stay locked at higher rpm・Industry first color coded， purpose built intake-sized and exhaust-sized design・Sold as two pair unless noted・CNC machined from 8620 steel■注意点※取り扱い説明書は英語となります。

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