Cylinder Assembly for Rotax Max Evo Engines, for Senior and Master Max. This cylinder does feature the 'power valve' slot, and is designed to work with a variety of Max Evo kart engines, from Rotax Senior and Master categories.
The cylinder comes complete as a cast part, with intake, cylinder, and exhaust ports all cast and ready to install.
Note that for most racers this cylinder will require cutting of a certified seal for servicing.