

Top-end gasket kit made by Athena for Gas Gas EC/SM/MC 200-250-300 2T from 1997 to 2013
Top-end gasket kits include all necessary gaskets to rebuild the top end of the motor from the base gasket up, including all rubber gaskets such as valve cover gaskets, O-rings and valve stem seal.
The kit included 3x cylinder base gaskets (0.1mm, 0.3mm and 0.5mm)