Upgrade your BMW R65 (Post 1985) or your R45 (Post 1980) with this comprehensive 860cc power kit. Engineered with Nikasil-finished cylinders and precision-balanced pistons weighing just 150g for refined, quiet performance. Includes factory gaskets, new rings, pins, and pre-assembled stainless steel push rod tubes. The optimized piston geometry eliminates additional headwork. Everything needed for a seamless installation. If you have ANY questions regarding this kit, please E-Mail me at TheBMWGuy126@gmail.com