
S3 Extreme Enduro Cylinder Head and Insert Kit — Low Compression (KTM Orange)
Designed for extreme enduro where control takes precedence over raw power, this S3 kit lowers the compression to provide a smoother engine response and an easier power band to manage. Ideal for technical trails, it helps to smooth out power surges to enhance traction and low-speed handling.
The kit includes the Extreme insert, the cylinder head, and the necessary O-rings for installation. It is aimed at riders looking to prioritise grip, torque control, and manoeuvrability on rough terrain where every restart counts.
Manufacturer reference: XTR-K-250-O