Here is the best way to get your KX 125cc from 37 to 41hp reliably!
 

 
The BIG BORE of ATHENA with its large diameter of 58mm offers a good performance and torque gain over the entire range of your KX 2T.
 

 
The kit consists of a very reliable cylinder ATHENA aluminum treated nicasil with corrected diagrams. A VERTEX piston forged single-segmented steel.
 

 
A corrected exhaust valve. From a high compression yoke to a special chamber.
 

 
It comes with hardware and gaskets as well as the manual! An excellent kit for KAWASAKI KX 125cc 2T from 2003 to 2007!
 

 
Your KX will become a KX 144cc!
 
