Modifies compression, allowing one more gear to be used, improving power delivery and engine torque. It is also recommended for use at an average altitude of 1000m.
Its design manages to lower the temperature by eliminating the typical hot spots of the original cylinder heads.
Ideal for aggressive riding, looking for strong emotions.
For the 250cc 2017-2021 with Carburetor, you need a cap to cover the sensor thread. (ST-1235) available on our website, picture attached for reference.
* All kits include: cylinder head cover, insert and O-rings.