The factory cylinder heads with variable combustion chamber are a must for every racer. The aluminium alloys and optimised combustion chamber shapes employed ensure the best possible heat dissipation. This has a positive effect on power delivery and reduces material wear in the combustion chamber and on the piston. Replacement of the whole head is now no longer necessary - simply put in a new combustion chamber insert and off you go again.
For the carburetor jetting, we recommend using the standard jetting of your vehicle.
More information on the carburetor jetting can be obtained from your authorized dealer.
Without combustion chamber insert.