YAMAHA 1C3-22210-00-00 YZ125 YZ250 YZ250F YZ450F REAR SHOCK ABSORBER ASSEMBLY. DECIDED TO REPLACE THE REAR SHOCK ON MY 2005 YZ125 AS I USE THE BIKE FOR RACING MOTOCROSS, WHEN I WENT TO REBUILD SHOCK I SAW BENEATH THE DETERIORATING BUMPER A BAD SPOT. LUCKILY THE SHOCK HAS NEVER COMPRESSED TO THAT POINT AS IT IS WELL BEYOND THE BUMPER. WAS GOING TO LIST THE SHOCK PARTS REPAIR BUT MOTORCYCLES USED FOR WOODS RIDING CAN USE THIS SHOCK WITHOUT WORRYING ABOUT GETTING TO THE DEAD SPOT SO THE PURPOSE OF THE BIKE WILL MATTER IF THIS SHOCK WILL BE FOR YOU. VIEW LAST PICTURE FOR REFERENCE. CONDITION 5/10 FOR THAT REASON. BUMPER IS DETERIORATING SO SHOCK WILL HUGELY BENEFIT FROM REBUILD. FITS 2005-2021 YZ125/YZ250 2 STROKE. FITS 2006-2009 YZ250F YZ450F.