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LOT 207

Offered from the National Motorcycle Museum Collection 1939 Ariel 599cc Model 4F Square Four Registration no. JFC 85 Frame no. P1797 Engine no. EE587

Sold for £20,700 inc. premium
Lot 207

Offered from the National Motorcycle Museum Collection, 1939 Ariel 599cc Model 4F Square Four
Registration no. JFC 85 Frame no. P1797 Engine no. EE587

Offered from the National Motorcycle Museum Collection
1939 Ariel 599cc Model 4F Square Four
Registration no. JFC 85
Frame no. P1797
Engine no. EE587

Designed by the legendary Edward Turner, Ariel's Square Four was first shown at Olympia in 1930. Unique at the time of its introduction, the 'Squariel', as it was swiftly dubbed, featured a single block of four cylinders and twin geared-together crankshafts with pistons phased at 180 degrees. The crankcase was split horizontally, unusually for a motorcycle engine of the period, while the vertical valves were operated by a single overhead camshaft. Although launched as a '500', the Squariel was soon enlarged to 601cc with an eye on the important sidecar market, this bigger 4F6 version being made available for the 1932 model year. Added to the range in 1937 was the totally redesigned Model 4G, with 995cc overhead-valve engine, making it an even more enticing prospect for sidecarists. Dropped after 1936, the '600' 4F reappeared for 1939, redesigned along the lines of its larger sibling. Not revived after WW2, the overhead-valve 4F is one of the rarest of 1930s Ariels.

This rare Square Four variant has been restored by the Museum, as commemorated on the attached silver plaque, and comes with an old-style continuation logbook and an old-style V5C document. The machine's mechanical condition is not known; accordingly, prospective purchasers must satisfy themselves with regard to its condition, completeness, correctness, or otherwise prior to bidding.

Footnotes

As with all Lots in the Sale, this Lot is sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness, and originality prior to bidding.

Saleroom notices

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  • 9 December 2020, 09:00 - 17:00 GMT
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