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Bonhams 1793 Ltd – Motorcycle dept
101 New Bond Street, London
Tel:  02081280201
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1937 Velocette 348cc -Type KTT Works Replica Racing Motorcycle For Sale by Auction

Re-creation of a 'works' KTT racer

Mark VIII KTT engine internals

Ideal for parades, sprinting, and racing Various incarnations of Velocette's KTT followed the model's introduction in 1928, and were later ascribed ascending 'Mark' numbers as they were changed and developed. Alongside these were the inevitable factory, or 'works' special versions with experimental features. As with most manufacturers, either with racing pedigrees, or aspirations to such, Velocette promoted their racing exploits with their own team of riders, and also by providing machines and/or factory-built and tuned engines to favoured promising, or established, riders. 'Works' bikes included a supercharged version, and, in 1936, a double overhead camshaft design. When the DOHC failed to produce the required power output, the works machines for 1937 reverted to single overhead cam layout, but with a large 10-inch cylinder head, and big-finned cylinder barrel. A similar layout, but with slightly smaller fins was later used for the Mk VIII. The owner of this unique racing special was captivated by these 1937 works machines, and, as a genuine example would be unobtainable, or prohibitively expensive, he determined to build a replica which he could use for parades, sprints and hillclimbs. He was fortunate enough to have original Mk VIII engine internals and crankshaft which, with a new big end assembly, formed a basis for the engine, and he obtained new castings made from copies of the original factory drawings, with which to construct the motor. A replica frame with cast lugs was utilised, together with newly cast hubs, original gearbox, and other parts. Carburation is via an Amal TT carburettor, and ignition from a BTH magneto. The work took approximately four years, and was completed in 2012. The vendor ran the machine for the first time at the Festival of 1000 bikes in 2013. He reports that it seemed to run well at that time. Since then, other matters have occupied his attention, and, with advancing age, he now feels that his creation should pass to another who can use the machine as he intended. Running on mineral oil, this racer provides a new owner with an excellent opportunity to run the machine in parades, for sprinting, hillclimbs, or racing. It will require safety checks and commissioning prior to use, and in particular, the gearchange needs adjustment, and some of the paintwork now ideally needs refinishing. It will undoubtedly provide endless talking points for Velocette enthusiasts everywhere. Documentation with this machine comprises the aforementioned copy factory drawings for the crankcases, cylinder head, and timing cases.

This motorcycle is to be auctioned at our Live and Online Winter Sale, Hanger 113, Bicester Heritage, OX26 5HA.


Friday 11 December
Spares & Memorabilia (Lot 1 - 112) 9am
The National Motorcycle Museum Reserve Collection (Lots 201 – 252) 11am

Saturday 12 December
Motorcycles (Day 2) (Lots 501 – 708) 10am

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 contact Bonhams Motorcycles by clicking 'Message the seller' with your preferred date, time and vehicle registration number to book an appointment.

Wednesday 9 December 9am to 5pm
Thursday 10 December 9am to 5pm
Friday 11 December 9am to 5pm (Lots 501 – 708 only)


Please note that whilst public 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. All bidding will be conducted via Online, Telephone and Absentee Bidding. Please contact our Bids Department to register using the 'Message the seller' button.


Motorcycle lots must be cleared from the sale venue by 2pm Sunday 13 December 2020. Limited collection is available until 2pm Monday 14 December, by appointment only. If collecting Monday, please access Bicester Heritage via the 'Main Gate', Buckingham Road, OX26 5HA. Please email us using the 'Message the seller' button with your collection or transport instructions as soon as possible following your successful bid. Failure to instruct Bonhams by the given time will result in your vehicle being uplifted to store at your expense, as detailed in the Conditions of Sale. Buyers should satisfy themselves that they have collected all relevant log books, documents and keys relating to their Lot(s) at time of collection.


Hangar 113
Bicester Heritage
Buckingham Road
OX26 5HA
This advert has now been removed through sale or otherwise, please see the list below for similar live adverts
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1950 Velocette 1950 VELOCETTE TRIALS UNIQUE VERY TRICK BIKE £9995 OFFERS PX For Sale £9,995
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