Established in 1960, specifically to develop and manufacture parts for the shaft drive Sunbeam S7 and S8 motorcycles (1946-1957), Stewart Engineering are the world's experts on these machines. With our huge stocks of spares, superb world wide mail order facility, 'over the counter' shop sales (by appointment only) and fully equipped workshops, we can cater for your every Sunbeam need. more... See more text