c.1950 AJS 7R 350cc Racing Motorcycle Frame no. 11 (see text) Engine no. 50/7R 847

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Lot 630N
c.1950 AJS 7R 350cc Racing Motorcycle
Frame no. 11 (see text) Engine no. 50/7R 847

£ 16,000 - 22,000
US$ 21,000 - 29,000
To be sold without reserve
Amended
c.1950 AJS 7R 350cc Racing Motorcycle
Frame no. 11 (see text)
Engine no. 50/7R 847
• Iconic over-the-counter racer
• An older restoration
• Bought from a well-known British marque specialist

Built from 1948 to 1963, Associated Motor Cycles' AJS 7R - known as the 'Boy Racer' - was one of the most successful over-the-counter racing motorcycles of all time. Almost all of Britain's road-race stars of the 1950s and 1960s rode a 7R at some stage of their careers and the model remains a major force in classic racing today, being highly sought after by competitors and collectors alike. The 7R was conceived as a customer machine for sale to private owners but was also campaigned by the works team.

Although a new design by Phil Walker, the 7R, with its chain-driven overhead-camshaft, was very reminiscent of the AJS 'cammy' singles of pre-war days. Despite the fact that the 7R was not, initially, as powerful as its main rivals - the Velocette KTT and Junior Manx Norton – its robust and simple construction endeared the model to the privateer responsible for his own maintenance. While the duplex loop frame and Teledraulic front fork remained essentially unchanged throughout production, the engine underwent almost continuous revision, latterly under the supervision of Jack Williams. To this end the valve angle was progressively narrowed; the inlet port downdraft angle made steeper; the crankshaft strengthened; and, in 1956, engine dimensions changed from the original long-stroke 74x81mm bore/stroke dimensions to the 'squarer' 75.5x78mm, permitting higher revs. AMC's own gearbox (also used on the Manx Norton) replaced the previous Burman in 1958, while engine development continued almost to the end of production, by which time the 7R was putting out around 41bhp. There was also a works-only three-valve 'triple knocker' - the 7R3A - which Rod Coleman used to win the 1954 Isle of Man Junior TT, while a Matchless-badged 500cc version of the production 7R – the G50 – was introduced towards the end of 1958.

Since the AMC factory records have been lost, nothing is known of the history of the 7R on offer, which had already been restored when Giancarlo Morbidelli bought it from a well-known British marque specialist. It should be noted that the frame number stamping is believed to be non-factory; accordingly, prospective purchasers should satisfy themselves with regard to the correctness or otherwise of this motorcycle's components prior to bidding. Sold strictly as viewed, the machine comes with a photocopied spares list and some other model-related literature.

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

  • Please click the link to view the walkaround video of Lot 630: click here
Contacts
c.1950 AJS 7R 350cc Racing Motorcycle Frame no. 11 (see text) Engine no. 50/7R 847
c.1950 AJS 7R 350cc Racing Motorcycle Frame no. 11 (see text) Engine no. 50/7R 847
Auction information

LIVE AND ONLINE AUCTION
Please note that whilst viewing is available by appointment, the auction itself will be conducted from a remote saleroom, behind closed doors without public access, in accordance with the current government guidelines.

Bidding Notices

VIEWING
In light of the current government guidelines and relaxed measures we are delighted to welcome viewing, strictly by appointment.
All the lots will be on view at Bicester Heritage in our traditional Hangar 113. We will ensure social distancing measures are in place, with gloves and sanitiser available for clients wishing to view motorcycle history files.
Please email: [email protected] with your preferred date, time and vehicle registration number or call +44 (0) 20 8963 2817 to book an appointment.

VIEWING TIMES
Wednesday 12 August 1pm to 5pm
Thursday 13 August 9am to 5pm
Friday 14 August 9am to 5pm
Saturday 15 August 9am to 5pm (Lots 501-704 only)

SALE TIMES
Friday 14 August Spares & Memorabilia (Lot 1 - 212) 10am
Saturday 15 August Motorcycles (Lot 301 - 462) 10am
Sunday 16 August Motorcycles (Morbidelli) (Lot 501 - 704) 10am

BIDS ENQUIRIES
+44 (0) 20 7447 7447
[email protected]

CONDITIONS OF SALE – GUIDE FOR BUYERS
Please see the CONDITIONS OF SALE / GUIDE FOR BUYERS for all pertinent information regarding viewing, bidding, payment and post-sale collection & Transportation

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, buyer's premium excluding Cars, Motorbikes, Wine, Whisky and Coin & Medal sales, will be as follows:

Buyer's Premium Rates
27.5% on the first £2,500 of the hammer price;
25% of the hammer price of amounts in excess of £2,500 up to and including £300,000;
20% of the hammer price of amounts in excess of £300,000 up to and including £3,000,000;
and 13.9% of the hammer price of any amounts in excess of £3,000,000.

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

Payment Notices

For payment information please refer to the sale catalog.

Shipping Notices

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Lot symbols
N NOVA declaration

If purchased by a UK resident, this machine is subject to a NOVA declaration, undertaken by Bonhams upon a successful sale, to facilitate the registration of the machine here in the UK.