S3 High compression power - red Cylinder head and insert kitRef : SPART00318A / 1101839

S3 Power High Compression Cylinder Head and Insert Kit - Red Beta RR 250 (Manufacturer Ref: PWR-BETARR-250-R) — a part designed for motocross riders who want to optimise the thermal heart of their 2-stroke Beta.

Branded S3, this kit includes the cylinder head and insert in a red finish, designed to fit the Beta models listed below. Its geometry aims to increase the compression ratio for a sharper combustion and better engine responsiveness without unverified numerical promises.

• Main compatibilities:
  • BETA XTRAINER 250 2T (2025)
  • BETA RR 250 2T RACING (2024)
  • BETA RR 250 2T (2024)
• Finish: red, aesthetic and easily identifiable at first glance.
• Usage: intended for motocross practice and performance-oriented engine tuning.

Technical and practical point: fitting a high compression cylinder head affects the sealing of the chamber, ignition timing, and carburation. To maintain the reliability of the piston and rings, it is recommended to have this kit installed by a professional and to adjust the engine settings (carburation/ignition) after installation.

Choose this S3 kit if you are looking for a simple solution to modify the combustion chamber of your Beta 250 while keeping an aesthetic part dedicated to motocross competition.