S3 Extreme Enduro low compression orange Cylinder head and insert kitRef : SPART00312A / 1093365

S3 Extreme Enduro Head Kit and Insert — low compression (KTM orange) · Ref. XTR-K-300-O

Designed for Extreme Enduro riding, this S3 kit combines a head and a low compression "Extreme" insert for 300 cm³ engines. Intended for technical terrains where power progression and control are sought, it is aimed at riders who prioritise torque management in technical areas, obstacles, and precise accelerations.

• Configuration: S3 head + Extreme insert + O-rings included.
• Visible features: KTM-style orange finish, racing design suited to the off-road spirit.
• Design objective: to lower compression for a smoother power curve and easier handling in tricky areas (designed to improve manoeuvrability rather than increase maximum power).
• Design: profile designed to optimise heat dissipation and reduce mass where possible, according to S3 design.

Compatible with the 300 cm³ cross/enduro range — e.g. KTM 300 EXC SIX DAYS (2016), HUSQVARNA TE 300 (2016), KTM 300 EXC (2016). Professional installation is recommended to ensure sealing and appropriate adjustments. Ideal for those seeking a more controllable engine behaviour in extreme terrain, without compromising reliability.