1961 Demm 50cc Bialbero Racing Motorcycle Frame no. none visible Engine no. M2

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Lot 683N
1961 Demm 50cc Bialbero Racing Motorcycle
Frame no. none visible Engine no. M2

£ 8,000 - 14,000
US$ 10,000 - 18,000
To be sold without reserve
Amended
1961 Demm 50cc Bialbero Racing Motorcycle
Frame no. none visible
Engine no. M2
• Ultra-rare four-stroke 50cc racer
• Purchased circa 25 years ago
• Restored by a specialist

The Demm motorcycle company's origins date back to 1919 when Messrs Daldi and Matteucci established a small company in Milan - Società Anonima Daldi - to manufacture automotive components. In 1928 the company's name was changed to Officine Meccaniche Daldi e Matteucci and in 1939 to Demm (DEMM), an acronym for Daldi e Matteucci Milano. Production of motorcycles began around 1952/1953, by which time the firm had relocated to Porretta Terme, a town some 60 kilometres south west of Bologna, although its registered office remained in Milan.

Demm concentrated on producing mopeds and lightweight motorcycles, adding three-wheelers to the range later on. Most of the mopeds were powered by engines of up to 75cc - both two-stroke and four-stroke - while there were also motorcycles powered by overhead-camshaft engines of 125cc and 175cc. In later years Demm concentrated on 50cc mopeds and ultra-lightweights, offering a bewildering plethora of models, often with quirky names. As well as producing complete machines, Demm was a major supplier of proprietary engines to other manufacturers. Although production of motorcycles and engines ended around 1983, Demm continued selling motorcycle-related products until 1988 when the decision was taken to concentrate on the gear-cutting side of its business.

Demm was actively involved in competitions, setting 24 world speed records in the 50cc class in 1956 and winning the Italian Mountain Championship's 50cc category in 1961. The machine used to win that championship was a twin-overhead-camshaft four-stroke of advanced design. Slightly over-square with dimensions of 40mm/39mm bore/stroke, the single-cylinder Demm engine drove its upstairs camshafts via a vertical shaft and bevel gears and used an outside flywheel. The carburettor was a 16mm Dell'Orto with separate rubber-mounted float chamber, while other noteworthy features included twin-plug battery/coil ignition, geared primary drive, a multi-plate dry clutch, and an integral six-speed gearbox. This exquisite little power unit was carried in a duplex loop frame equipped with telescopic front fork and swinging-arm rear suspension, while the tyres were a skinny 2.00"x18". Thus equipped, Demm's 50cc racer tipped the scales at only 55kg (121lb). It was rumoured at the time that Demm would move up to the international stage for 1962, the first year of the 50cc World Championship, but the marque appears to have had little impact outside of its native Italy.

Purchased some 25 years ago, this ultra-rare 50cc racer was restored for Giancarlo Morbidelli by a specialist. The machine is offered with a selection of photographs and some photocopied period 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 683: click here
Contacts
1961 Demm 50cc Bialbero Racing Motorcycle Frame no. none visible Engine no. M2
1961 Demm 50cc Bialbero Racing Motorcycle Frame no. none visible Engine no. M2
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.