Lot details Registration No: NAT 798 Frame No: G220 Engine No: S8992 cc: 500 MOT Expiry Date: None
Sunbeam introduced the 500cc S7 to the public during 1947. Intended as the "group flagship" the overhead cam, in line twin cylinder machine was aimed at the discerning tourist. Shaft final drive, full mudguards and balloon tyres combined with plunger rear suspension and telescopic forks helped to ensure that the rider remained clean and comfortable, but did little for the handling and unfortunately they also contributed to a weight of over 400lb. Consequently the machine struggled to exceed 75mph when tested, comparable to a far cheaper ohv 350cc single resulting in poor sales, which combined with high production costs due to the lack of common components to other machines in the BSA stable. A revised model, adopting new forks was introduced during 1949 together with a lighter, more sporting model typed the S8. The S8 reverted to normal section tyres and employed standard BSA forks and front brake. The result was a machine that handled with greater precision and looked "lighter", although the outright performance did not change greatly. The two machines continued to be offered until 1957, selling steadily to their target market .
This example, dating from 1952 has been laid up for a number of years and is presented in need of restoration. It appears to be complete and is equipped with a carrier and screen and offered with a buff log book.
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