*It requires I-MAP during installation. *It has no decompression function with camshaft. *It is not usable in public road because it exceed 125cc. *It requires super oil cooler kit separately during installation.
It is a bore up kit that you can use the STD cylinder head as it is. It achieves power and torque up by increasing the engine displacement. It makes it easy to handlebar especially the torque far exceeds the STD from the medium speed range.