Your engine has tightened and you want to start again on a quality engine so you don't have to dismantle it soon? Then here is the complete engine top proposed by ATHENA to rebuild your KTM EXC-F and HUSQVARNA FE 250cc 4 stroke from 2014 to 2016. This kit is sold complete as on the picture with its axle, clips, ring, piston, gasket and its cylinder. This kit is not a big bore, it has the same characteristics as the original it is Ø78mm which gives us 250cc. You will have a slight gain in performance on your bike. Attached is the power curve so you can see for yourself the difference between the original and the kit ATHENA. It is of course of excellent quality as usual at ATHENA. The nikasil is really of excellent manufacture to guarantee you an increased reliability. We also have all the gaskets, rings and all the spare piston dimensions so that you can keep your cylinder as long as possible. A list of compatible vehicles can be found below.