DHM High Compression Piston Stock Bore Honda CRF110

• Direct drop in
• High compression 12.5:1 dome
• Multiple oiling holes for skirt and ring lubrication
• Valve reliefs to clear big valve 27/22 cylinder heads
• Requires tuning, and a minimum octane of 91
• Base and head gaskets not included
  

***Set upper silver ring gap to .008" and lower black ring gap to .010"