Sunbeam model 95L Special 500cc 1 cyl ohv 1935 for sale

The Model 90 first appeared in the firm’s catalogues for the 1927 season. Sunbeam had tried to develop an OHC racer but that proved to be unsuccessful: the camshaft Sunbeam that appeared in 1925 was seriously lacking in torque and power because of problems with valve timing. Factories like Velocette and Norton decided to carry on experimenting and finally got the knack, but Sunbeam returned to the pushrods.The factory turned to advice to Harry Weslake, who discovered the importance of the right shape of port and the optimum direction of gas flow. On this then new technology Harry Weslake built a career as an engine consultant- the splendid XK Jaguar engine was one result, the excellent reputation of the Model 90 another.The engine was internally much different from the standard machines, with highly polished I-section conrod, 7.5 : 1 piston running in a special machined barrel. The head had enormous port finning and hairpin valve springs. The model 90 was very successful in racing for a number of years. For 1934 a successor was presented, the Model 95. Production of the M 95 ended in 1935. In the course of its racing career this Model 95 - as most racing machines- had its ups and downs: it has been fitted with a Model 9 frame, an updated gear change mechanism and a non- original petrol tank.


Seller: Yesterdays Motorcycles
Phone: +31 495 546054

Details for Sunbeam model 95L Special 500cc 1 cyl ohv 1935 for sale

Make: Sunbeam
Type: model 95L Special
Coach: 500cc 1 cyl ohv
Year: 1935
Price: EUR 12950
Advert ID: 177615
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