Source: Pipeburn –

The late ’60s and early ’70s were probably the defining period in motorcycle history, as the twin cylinders of old made way for the multicylinder machinery from Japan that still underpin the foundations of today’s industry. You can look back and clearly see that while on sale at the same time, the Honda CB750 represented the best of what was to come, while the Triumph Twins constituted not just…
Sourc 

Click here to see source