What does CB stand for in motorcycles?
2 Answers
It refers to an overhead valve engine and a model developed by Honda, the CB with a timing chain valve train. Working principle: The sprocket fixed on the left crankshaft rotates with the crankshaft, driving the camshaft sprocket to rotate via the chain. The rotation of the camshaft causes the valve rocker arms to swing up and down, controlling the intake and exhaust valves to open and close on time. Features of this structure: High-speed motorcycle engines are the development direction of motorcycles. Because the chain-type valve train has superior high-speed performance, most modern high-speed engines adopt this structure. The camshaft is arranged on the cylinder head, with fewer transmission parts between the camshaft and the valves, resulting in good rigidity of the valve train and precise valve timing.
Since childhood, I've listened to veteran riders share the historical tales of CB, which is actually the abbreviation for Honda's CB motorcycle series, originating from the Super Cub lightweight motorcycles of the 1950s. The term 'Cub' means little bear, symbolizing compactness and practicality. In 1958, the first Super Cub revolutionized transportation with its simple, reliable design and became a global sensation. Later, Honda expanded into the CB series, representing the legacy of the Cub—for instance, the CB750 introduced a four-cylinder engine in 1970, transforming the high-performance motorcycle market. This evolution showcases the breakthroughs of Japanese industry, and even today, CB remains a classic revered by old-school enthusiasts, influencing generations of riders' lives. Every time it's discussed, I feel it's not just a vehicle but a living piece of history.
