CYLINDER AND PISTON

The engine in the 2020 model features a new cylinder taken over from the successful KTM 250 SX-F. It has a bore of 78mm and in conjunction with a new cylinder head gasket, now has a raised compression ratio of 13.8 :1. The forged, bridged, box-type piston made by CP, features a unique piston crown shape that has been adapted to the combustion chamber. Despite its incredibly low weight, it has an extra rigid structure for enhanced durability. Thanks to its lightweight construction, the oscillating masses are low, giving the engine extremely lively characteristics.