Driving increases the heat of the air inside the tire and the pressure rises. A heated tire does not reflect an accurate pressure. The best pressure is that which give the acceptable ride and minimum wear on the tires. Regularly checking tire pressure and watching for tire wear is a good guide.
In 1823, Samuel Brown patented the first internal combustion engine to be applied industrially. In 1860, Belgian Jean Joseph Etienne Lenoir produced a gas-fired internal combustion engine. In 1864, Nikolaus Otto patented the first atmospheric gas engine. In 1872, American George Brayton invented the first commercial liquid-fuelled internal combustion engine. In 1876, Nikolaus Otto, working with Gottlieb Daimler and Wilhelm Maybach, patented the compressed charge, four-cycle engine. In 1879, Karl Benz patented a reliable two-stroke gas engine.
The motorcycle we currently ride today was developed in 1885 by the German engineer Gottlieb Daimler. In 1872, his interests turned to the internal combustion engine, when he joined Gasmotorenfabrik Deutz as technical director. Here he met up with Nikolaus Otto, pioneer of the four- cycle engine. It was during this time he became convinced steam engines were an outmoded form of power for the future. Wilhelm Maybach, a man who also understood the drawbacks of steam, soon joined the quest to produce and perfect the gasoline engine. By 1876 the commercial development of the Otto four - cycle engine was complete.