The difficulty of rolling a 16-cylinder engine into a motorcycle really boggles the ... And get this, those custom parts are being milled by hand, using time-tested techniques rather than modern ...

As it turns out, you can indeed build a two-stroke engine from scratch, using little more than some metal piping and other parts from the hardware store. You also need a welder and a lathe ...

Also due to its low engine speeds, it does not need water cooling or an oil pump, which further reduces the number of moving parts and friction losses. Lubrication is provided by centrifugal force.