BlackPath - Honda Manual Adjustable Chain Tensioner Kit CBR600 F3 + F4 + F4i Motorcycle Valve Timing Cam Chain Adjuster Kit (Black) T6 Billet Fits 1995-1998 Honda CBR600 F3 & 1999-2006 Honda CBR600 F4 / F4i Designed to replace stock hydraulic timing tensioner to prevent premature engine wear Ensures that the timing chain tension is set at a constant, throughout the whole RPM range Includes (1x) Manual Timing Chain Tensioner, Hardware and Installation Instructions CNC Machined from T6 Billet Aluminum for a perfect fitment & Anodized Black for a Corrosion & Oxidation Resistant finish