LOT 383

1957 Norton 348cc Model 50 Registration no. 943 BKM Frame no. N13 76239 (see text) Engine no. N13 76239 (see text)

Sold for £3,450 inc. premium

Lot 383

1957 Norton 348cc Model 50

The Autumn Stafford Sale - The Classic Motorcycle Mechanics Show|11 October 2026, 11:00 BST|Stafford, Staffordshire County Showground

1957 Norton 348cc Model 50
Registration no. 943 BKM
Frame no. N13 76239 (see text)
Engine no. N13 76239 (see text)

Introduced in 1933, the single-cylinder Model 50 was Norton's first production overhead-valve machine in the 350 class; the 50 and its twin-port brother the 55 being junior versions of the 490cc Models 18 and 20 respectively. The new 350s were fitted with the four-speed Sturmey Archer gearbox that was adopted for all OHV Nortons that year. A hand gear-change was standard, with foot change an optional extra. The Sturmey Archer 'box, though, was destined for a relatively short life, being replaced by Norton's own four-speed foot-change unit for 1935. Norton's sporting 350 single was built in several versions and continuously developed during a production run lasting until 1963, post-war innovations including the adoption of the AMC gearbox in 1956 and a switch to superior alternator electrics and the peerless 'Featherbed' frame for 1959.

This Norton Model 50 was acquired by the late engineer owner in 2020 and then stripped and fully rebuilt/restored by him. Works carried out included a professional repaint, triple-chroming the brightwork (including the original wheel rims) and refurbishing the speedometer (retaining the previous recorded mileage). Unfortunately, few bills from this rebuild have survived the late owner's passing. The Norton has been unused since 2025; stored indoors, it is described by the vendor as 'stunning and in show condition'.

It should be noted that both the accompanying V5C Registration Certificate and HPI report incorrectly record the frame and engine numbers, rendering the 'N13' prefix/suffix as 'NB'.

Following a period of inactivity, this motorcycle will require recommissioning and/or restoration to a greater or lesser extent before returning to the road and thus is sold strictly as viewed. Prospective purchasers should satisfy themselves with regard to this motorcycle's completeness, history, authenticity, originality and mechanical condition prior to bidding.

Key not required

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