1954 SUNBEAM S7
The S7 may seem as thoroughly British as bikes go, but ironically, it was loosely based on BMW R75s that were German army standard issue and captured by the Brits. However, the company decided that the BMW looked too German and chose to ditch the flat-twin engine in favour of a newly designed 487cc parallel twin fitted with an overhead cam setup. The motorcycle did retain other features from the BMW, like the shaft drive. And thus was born the S7. Unlike later models, the initial S7s were sold without rubber mounted engines. However, these bikes vibrated so badly that all of them had to be recalled to be retrofitted with rubber engine mounts. |