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Bonhams 1793 Ltd – Motorcycle dept
101 New Bond Street, London
Tel:  02081280201
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1933 Rudge 499cc TT Replica Racing Motorcycle For Sale by Auction

The full potential of Rudge's four-valves-per-cylinder design was slow to emerge, but in 1928 Graham Walker's works 500 became the first motorcycle to win a road race - the Ulster Grand Prix - at an average speed in excess of 80mph, a feat which led to the introduction of the legendary 'Ulster' sports model. Early engines deployed parallel valves in a pent-roof combustion chamber, then in 1930 a trio of 350s appeared at the Isle of Man with radially-disposed valves, the new arrangement demonstrating its superiority when the Rudges finished 1,2,3 in the Junior TT. The next move was to produce a 'head for the 500 featuring parallel inlet valves and radial exhausts, and this semi-radial arrangement debuted on the works bikes for 1931. Chief advantage of the semi-radial valve gear was its reduced complication, but although the works 500s proved every bit as fast as before, they were beset by handling problems. Altered weight distribution caused by re-positioning the magneto behind the cylinder was diagnosed as the culprit, and the mag was promptly moved back to its original position. The TT Replica went from parallel valves in 1931 to radial in 1932 and then, finally, to the semi-radial arrangement for 1933, the last year of this model's production. Semi-radial valves were adopted for the 500cc Ulster for '33, and Rudge's top-of-the-range model would keep this arrangement until production ceased in 1939. This Rudge TT Replica was purchased from Paul Ingham in December 2006 and comes with related correspondence and the purchase receipt. 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.

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
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