
LOT 543
c.1924 Triumph 550cc SD Registration no. KM 8169 Frame no. 340231 Engine no. 101461 (see text)
Sold for £8,050 inc. premium
Lot 543
c.1924 Triumph 550cc SDRegistration no. KM 8169 Frame no. 340231 Engine no. 101461 (see text)
The Autumn Stafford Sale – The Classic Motorcycle Mechanics Show|16 October 2022, 10:00 BST|Stafford, Staffordshire County Showground
c.1924 Triumph 550cc SD
Registration no. KM 8169
Frame no. 340231
Engine no. 101461 (see text)
Registration no. KM 8169
Frame no. 340231
Engine no. 101461 (see text)
Triumph's 3½hp model had first appeared in 1907. Originally of 453cc, its sidevalve engine was enlarged to 476cc in 1908 and finally to 499cc in 1910 before being superseded by the 550cc 4hp model in 1914. Equipped with three-speed Sturmey-Archer gearbox, it was this revised 4hp - the Model H - that did such sterling service in WWI, some 30,000 'Trusty Triumphs' seeing action with British and Allied forces. Updated with chain final drive for 1920, it became known as the 'SD' (Spring Drive) because of its clutch-mounted, coil-spring shock absorber, and formed the basis of the later four-valve Ricardo model.
This Triumph SD was purchased in the late 1930s from the original owner by the vendor's father, who used it with a box sidecar for his trade. The machine benefits from a replacement fuel tank (fitted at date unknown) and appears to require only relatively light restoration. No dynamo is present. The machine is offered with a V5C Registration Certificate, and it should be noted that although the V5C lists the date of registration as 1926, it is believed that the frame and engine both date from late 1924.
Key not required
This Triumph SD was purchased in the late 1930s from the original owner by the vendor's father, who used it with a box sidecar for his trade. The machine benefits from a replacement fuel tank (fitted at date unknown) and appears to require only relatively light restoration. No dynamo is present. The machine is offered with a V5C Registration Certificate, and it should be noted that although the V5C lists the date of registration as 1926, it is believed that the frame and engine both date from late 1924.
Key not required
Footnotes
All lots are sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.
Saleroom notices
The full engine number is: 101461 MGH.










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