Kawasaki KLX 140 KLX 150 Cylinder Head with Big Valves CNC Ported. Compatible make & model: KLX 140 150. Valve Diameter : 31/25, 34/29, 36/31 Please choose the valve diameter on your note Order. Valve with bigger size also available, 34/29 mm size. 31/25 works best with 63mm piston (170cc kit) and the 34/29 works with piston up to 66mm size. Please note that the 63mm piston will not works with the 34/29 size. This part may fit other makes, models, and years but it is your responsibility to ensure that it will fit your application. This item categorized in NEW and product type. We will try our best to solve the problem and provide amicable solution. Funds are due upon receipt in accordance with your local import and postal regulations. Hipping rates will vary depending on the size of the item and on your country. We are operating on GMT+7 time that might be different on your time zone. This offers tracking and approximately 10-20 days in transit.