S3 parts ‘EXTREM’ Head Kit for SHERCO 2017+ 250/300

Extreme Kit:

Modifies the compression for a smooth and progressive delivery of power. Improving traction and engine control especially important in technical areas.

Its design manages to lower the temperature by eliminating the typical hot spots of the original cylinder heads.

Ideal for Extreme style riding, improving the throttle feeling.

ATTENTION: For the 2016 Sherco SE-R 300 model, article ST-1208-PLUG is required