Application Compatible for Yamaha Rhino 450 YXR450 2006-2009 Rhino 660 YXR6602004-2007OEMand Part Number 5UG-2580V-02-00, 5UG-2580V-00-00 Specification Place on Vehicle: Rear Diameter & thickness of brake disc:180mm/3.5mm Brake system: for TRWQuantity: Brake Caliper with pads as picture show Reminder: Always inspect rotors for cracks & replace as necessary for longer brake pad life. Note* Hardware included for a complete removal & replacement. Just bolt on, bleed & top off fluid & ride.* Professional installation is highly recommended (No Instruction Included)* For any needs please contact us: Sales US@ Maxpeedingrods.com