c.1957 BSA 646cc Golden Flash Motorcycle Combination Frame no. FA7 14078 Engine no. CA10 4611
Lot 373
c.1957 BSA 646cc Golden Flash Motorcycle Combination Frame no. FA7 14078 Engine no. CA10 4611
Sold for £8,280 (US$ 13,530) inc. premium

Lot Details
c.1957 BSA 646cc Golden Flash Motorcycle Combination Frame no. FA7 14078 Engine no. CA10 4611 c.1957 BSA 646cc Golden Flash Motorcycle Combination Frame no. FA7 14078 Engine no. CA10 4611
c.1957 BSA 646cc Golden Flash Motorcycle Combination
Registration no. WYL 968
Frame no. FA7 14078
Engine no. CA10 4611
Introduced late in 1949, BSA's A10 650cc twin closely followed the basic pattern established by the 500cc A7 while contriving to be almost entirely different in detail. The existing parallel-twin architecture was retained for the new A10, with 360-degree crankshaft and single camshaft at the rear of the cylinder block, as was the four-speed gearbox bolted directly to the crankcase in a form of semi-unitary construction. The A7 engine was revised along the lines of the new design at the same time while the cycle parts remained virtually unchanged, though the larger twin's 8" front brake was one obvious difference. Fitted at first only to export models, the 4.25-gallon fuel tank became available on the home market after one year, as did the striking metallic beige finish of the 'Golden Flash' version. By the end of the succeeding decade, BSA's rugged 650cc twin had undergone considerable development. On the cycle parts front, the introduction of a swinging-arm frame in 1954 had resulted in the original bolt-up gearbox's replacement by a conventional separate item, while the engine had benefited from numerous improvements including an increase in compression ratio for 1958 and the standardisation of the sports models' high-lift camshaft for 1959. Perennially popular, the model continued in production until 1962 and was a regular choice among sidecarists, who appreciated its pulling power and economy.

The restored example offered here is attached to a Watsonian single-adult 'chair'. A total of just 2 miles (presumably the distance covered since the rebuild's completion) is displayed on the odometer and the machine is presented in commensurately good condition. The BSA 'combo' has been displayed at various events, most recently at The Classic Motorcycle Mechanics Show, Stafford in October 2009. Offered from a private collection, it will require re-commissioning and the usual safety checks before returning to the road. There are no documents with this Lot.
Auction information

This sale is now finished. If you are interested in consigning in future sales, please contact the specialist department. If you have queries about lots purchased in this sale, please contact customer services.

Buyers' Obligations

ALL BIDDERS MUST AGREE THAT THEY HAVE READ AND UNDERSTOOD BONHAMS' CONDITIONS OF SALE AND AGREE TO BE BOUND BY THEM, AND AGREE TO PAY THE BUYER'S PREMIUM AND ANY OTHER CHARGES MENTIONED IN THE NOTICE TO BIDDERS. THIS AFFECTS THE BIDDERS LEGAL RIGHTS.

If you have any complaints or questions about the Conditions of Sale, please contact your nearest customer services team.

Buyers' Premium and Charges

For all Sales categories excluding Wine, Coins & Medals and Motor Cars and Motorcycles:

Buyer's Premium Rates
25% on the first £50,000 of the Hammer Price
20% from £50,001 to £1,000,000 the Hammer Price
12% from £1,000,001 of the Hammer Price

VAT at the current rate of 20% will be added to the Buyer's Premium and charges excluding Artists Resale Right.

Payment Notices

Payment in advance: by cash, check with banker's card, credit card, bank draft or traveler's cheque.

Payment at collection: by credit or debit card.

Credit card charges: a surcharge of 2% is applicable when using Mastercard, Visa and overseas debit cards.

Shipping Notices

For information and estimates on domestic and international shipping as well as export licenses please contact Bonhams Shipping Department.

Similar Items