NEW READY TO INSTALL. VERY SIMPLE DESIGN. EASY TO USE. COMES WITH MOUNTING INSTRUCTIONS. THIS IS A RED TENSIONER. THIS FITS YAMAHA: - 2008 to 2013 RHINO 700 YXR700 - 2007 to 2013 YFM700 GRIZZLY - 2006 to 2013 YFM700 RAPTOR - 1998 to 2002 YFM600 GRIZZLY - 2002 to 2008 YFM660 GRIZZLY - 2001 to 2005 YFM660 RAPTOR - 2009 to 2013 YFM550 GRIZZLY - 2004 to 2007 YXR660 RHINO THIS FITS HONDA: - 1999 to 2013 TRX400EX - 1986 to 1997 TRX200 - 1987 to 1988 TRX125 - 1986 to 1987 ATC200X - 1986 to 1987 ATC125M - 2008 to 2009 TRX700XX - 2006 to 2013 TRX450ER - 1999 to 2013 TRX400EX THIS FITS SUZUKI: - 1998 to 2007 LT-F500 QUAD - 1998 to 2013 LTF LTA KING QUAD VINSON 500 - 2000 to 2013 LT-A500 KING QUAD - 2007 to 2010 LT-A450 - 1987 to 1989 LT300E - 2003 to 2012 LTZ400 - 2006 to 2009 LTR450 - 1998 to 2007 LTF500 THIS FITS ARCTIC CAT: - 2001 to 2009 500 2WD 4WD - 1999 to 2002 400 - 1997 to 1998 400 THIS FITS KAWASAKI: - 2003 to 2006 KLX400 REPLACE THAT OLD AUTOMATIC TENSIONER THAT WILL EVENTUALLY FAIL YOU. HAVE COMFORT KNOWING THIS ONE CAN NOT COLLAPSE UNDER STRESS. - CHEAPER THAN A NEW STOCK AUTOMATIC / PROBLEMATIC TENSIONER. THIS MANUAL CAM CHAIN TENSIONER IS DESIGNED TO REPLACE THE AUTOMATIC AND HYDRAULIC TENSIONERS ON HIGH PERFORMANCE ENGINES. THE AUTOMATIC ADJUSTERS CAN BACK OUT WHEN THE THROTTLE IS CLOSED SUDDENLY AT HIGH RPM. THIS ALLOWS THE CAMS TO GO MOMENTARILY OUT OF TIME, AND CAN RESULT IN BENT VALVES AND SERIOUS ENGINE DAMAGE. HYDRAULIC TENSIONERS HAVE A TENDENCY TO PUT TOO MUCH TENSION ON THE CHAIN GUIDE UNDER HIGH RPM (HIGH OIL PRESSURE CONDITIONS), RESULTING IN PREMATURE WEAR. BOTH PROBLEMS CAN BE ELIMINATED WITH THE INSTALLATION OF THIS MANUAL TENSIONER. NO MATTER WHAT THE ENGINE DOES, THE CAM CHAIN TENSION WILL REMAIN CONSTANT. THIS MANUAL CAM CHAIN TENSIONER IS A MUST FOR ANY KIND OF PERFORMANCE RIDING. THIS MANUAL TENSIONER IS CNC MACHINED FROM BILLET ALLOY TO EXACT TOLERANCES FOR PERFECT FIT.