S3 Extreme Enduro low compression red Gas Cylinder head and insert kitRef : SPART00309A / 1093360

The S3 Extreme Enduro low compression cylinder head and insert kit (red) is designed for riders seeking better engine control in extreme conditions. Designed for extreme enduro and technical riding, this kit promotes a more progressive power delivery to improve traction and handling in tricky sections.

• Softer engine behaviour: the low compression makes it easier to ride at low and mid-range RPM.
• Optimised traction: helps to better control acceleration on rough and technical terrain.
• Enduro-focused design: specific red finish and racing aesthetics that match competition machines.
• Weight reduction and heat dissipation: the geometry of the cylinder head helps to reduce mass and promote thermal evacuation.

The kit includes the Extreme insert, the cylinder head, and the necessary O-rings for installation. Manufacturer reference: XTR-EC-250-R. Compatible with many 250 cc cross/enduro models (including RIEJU MR 250 and GAS GAS EC 250 Racing), it is recommended to check compatibility with your machine and to have the installation carried out by a professional to ensure optimal adjustment and sealing.