Part No. 65-6300
Item # 30-30292, Chrome Silicon Springs for
Honda CBR600 F4 2001-2004,
All KPMI valve springs are designed in house using sophisticated, proprietary design and simulation softwares, and drawing on over 70 years of design experience. Our

equipment and experience enable us to determine critical characteristics including stress, natural frequency, system harmonics, and fatigue life. Our spring manufacturing partners are U.S based companies that are ISO certified. The Super-Clean Chrome-Silicon valve spring wire we use is traceable back to Kobe Japan where some of the best spring wire in the world is manufactured. Combining our design and simulation protocols with this premium quality valve spring wire, and manufactu 65-6301.PS"

stress relief, and shot peening, allow us to supply you with the best valve springs in the world.
Cross reference numbers ONLY. 14752-MBW-J21, 14751-MBW-E20, 14761-MBW-E20