LOT 310

The Clive Wood MBE Collection 1952 BSA 498cc Star Twin Registration no. LDT 474 Frame no. ZA7S 33376 Engine no. AA7 S 2166 (see text)

Sold for £3,450 inc. premiumLot to be sold without reserve

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Lot 310

The Clive Wood MBE Collection, 1952 BSA 498cc Star Twin

The Spring Stafford Sale - The International Classic MotorCycle Show|21 April 2024, 11:00 BST|Stafford, Staffordshire County Showground

The Clive Wood MBE Collection
1952 BSA 498cc Star Twin
Registration no. LDT 474
Frame no. ZA7S 33376
Engine no. AA7 S 2166 (see text)

Announced in September 1946, the A7 was BSA's first production parallel twin. Mechanically it followed Triumph lines but made do with a single camshaft rather than the Triumph's two. Unusually, the gearbox bolted directly to the rear of the engine in semi-unit style. The entire ensemble was housed in an unsprung duplex loop frame. A sports version - the Star Twin - arrived for 1949 boasting plunger rear suspension as standard, twin carburettors, and a power output boosted from the stock 27 to 31bhp. The engine was extensively revised for 1951 along the lines of the newly introduced Bert Hopwood-designed A10 650, and then in 1954 BSA's twins range was greatly expanded with the arrival of four new models featuring swinging-arm rear suspension. The introduction of the new duplex frame meant that the A7's bolted-up gearbox had to go, but otherwise the engine remained much as before, though the new Shooting Star sports roadster featured an alloy cylinder head and detachable inlet manifold.

This Star Twin's current registration dates from 2001, which is likely when the late owner acquired it. Offered for recommissioning or restoration (the engine turns over), the machine comes with BSA Service Sheets, SORN paperwork and a V5C Registration Certificate stating that it 'was registered and/or used. Declared manufactured 1952'. Please note the V5C and HPI incorrectly record the engine number as 'AA752166', an obvious clerical error.

Footnotes

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This Lot will be auctioned on Sunday 21 April starting at 11am GMT.

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