Original cylinder-piston-gasket kit for Gasgas Legacy / Rieju.

• Forged piston with MOS2 coating
• Nicasil racing cylinder, manufactured in Spain
• Nicasil treatment reduces friction and internal heat. Diamond stone honing finish
• Top end gasket kit

Includes:

• S3 Gas Gas Racing cylinder
• Complete piston set
• Gasket and O-ring set
• Needle bearing for piston

Manufactured by S3 in Spain.