S3 complete top-end kit.

High quality kit from the hard enduro specialists from Spain. It’s a direct replacement for the stock parts.
Details:

• forged premium quality piston, with MOS2 coating
• alloy nicasil racing cylinder, made in Spain
• Nicasil treatment reduces friction and internal heat. Diamond stone honing finish
• top quality premium gaskets top end kit.

You will get:

• S3 Rieju Racing factory cylinder
• full piston set
• gasket and o-rings set
• needle bearing for piston.

Part number: YKE-GG-EC250.

This fits:

• the 2019-2023 RIEJU MR 250
• the 2019-2023 RIEJU MR PRO 250
• the 2019-2023 RIEJU MR RACING 250.

Complete as pictured.