S3 High Compression Gas TRS Cylinder headRef : SPART00265A / 1011522

S3 Cylinder Head - High Compression Gas Gas/TRS (ref. ST-GG-IN-250 A)
S3, a specialist in trial and enduro parts, offers this high-compression cylinder head insert specifically designed for 250 Gas Gas/TRS engines. Designed to modify the volume of the combustion chamber, this insert aims to increase the compression ratio and optimize the explosion of the air/fuel mixture for a more dynamic engine performance.

The internal design of insert A promotes a more responsive throttle and better engine grip at low RPMs without compromising control on corner exit. Ideal for demanding cross and trial riding, it allows for a noticeable difference in how the motorcycle delivers its torque and revs up.

Main Benefits:

• Increases the compression ratio and optimizes combustion.
• Improves traction and engine response precision.
• Enhances low-end torque feel and acceleration responsiveness.
• Helps eliminate hot spots and stabilize cylinder head temperature.

Installation: designed to replace the original insert on compatible engines. After installation, carburetion or mapping adjustments may be necessary to fully take advantage of the new configuration. Compatible with:

• GAS GAS TXT 250 RACING (2018)
• GAS GAS TXT PRO 250 RACING (2017)
• GAS GAS TXT PRO 250 (2014)