Transport of water in plants. The driving force behind water movement in plants is evaporation through the leaves, which acts like a magnet pulling water up the plantâs plumbing system. However, because water is evaporating from a living surface, it is called transpiration.
The biggest Harley Davidson sports unique and oversized parts. However, the classic model has a two-cylinder V-twin engine. The twin pistons are set on a pin at a 45 degree angle. This setup allows a powerfully built engine to be placed in a compact space.
Speed: 85-100mph The first Harley-Davidson Two-Cam engine is made available to the public on the JD series motorcycles in 1928. Previously used only in racing applications by Harley-Davidson, the bike is capable of top speeds between 85 - 100 mph.