1999-2005 Yamaha TT-R125 Dirt Bike Top End Engine Gasket Kit [For Stock Bore Size] Off Road / Dirt EST Gasket Kits Contain Components Required for a Typical 2 or 4 Stroke Top End Rebuild or Repair Graphite Gaskets Feature a Steel Core, Laminated on Both Sides with Flexible Graphite Fiber Gaskets Designed for Maximum Seal, Flexibility and Torque Retention O-Ring Gaskets Meet or Exceed OEM Specifications Note: Head and Base Gasket Only