2008 YAMAHA YZ450F OEM REAR BACK SHOCK ABSORBER SUSPENSION 6.3KG SPRING GOOD!Condition: Used This OEM rear shock is in good condition and shows normal signs of wear. Shock cycles smoothly with good rebound damping and no leaks. All clickers turn and function. Eyelet bearings are pretty rough and could use a replacement. Factory Connection 6. 3KG spring installed. No scratches or pitting on shock shaft. Preload adjuster threads have some marring as shown, but have been cleaned up with a file and preload adjusters thread on and