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Lot 174: Triumph 744cc T140 'Silver Jubilee' Bonneville

Important Collectors' Motorcars & Motorcycles, Bonhams (16 June 2012)

The final phase of the Triumph twin's development began in 1972 with the first appearance of the new 750cc version of the Bonneville, the increase in bore size necessitating a new crankcase to accommodate the larger barrels. Other improvements included a new ten-stud cylinder head, triplex primary chain, stronger transmission and a disc front brake. A five-speed gearbox, introduced on the preceding 650 Bonneville, was standard equipment on the 750. Despite the age of the basic design and strong competition from Japanese and European manufacturers, the Bonnie remained for many years the UK's top-selling 750. In 1977 Triumph introduced a special, limited edition Bonneville to celebrate HM Queen Elizabeth II's Silver Jubilee. This was basically the standard Bonnie enhanced by a red, white and blue on silver finish, coachlined cycle parts, and a chromed timing cover and primary chaincase. One thousand were made for the UK and another thousand for the USA, while a further 400 were despatched to other markets.

This example of one of the more collectible of later Bonnevilles was supplied new by Triumph dealer Mick Hemmings Motorcycles of Northampton. The machine was first registered on 24th August 1977 and comes with its original certificate of ownership from the supplying dealer. Details of the three previous owners are contained within the accompanying history file together with mileage records dating back to 1996 when a total of 368 miles was recorded. This information suggests that the current recorded mileage of 2,111 is correct.

We are advised that the machine remains in generally very good order; the paintwork on the frame is showing signs of age and the chrome on the engine is slightly wrinkled, otherwise the bike is in generally excellent condition. Wheels with plain chromed rims have been fitted for general use while the original red-and-blue wheels  in very good condition and complete with tyres - are included in the sale. Other changes from factory specification consist of an after-market external oil filter, braided brake hoses, some stainless steel fastenings, US-style handlebars and electronic ignition. The original hoses, wheels and fittings are available.

Described as a nice, genuine example that runs very well, the machine is offered with the aforementioned history file, sundry service invoices, MoT to May 2013 and Swansea V5C registration document.

Lot Details
Auction Important Collectors' Motorcars & Motorcycles
Bonhams, Oxford, UK
TypeMotorcycle
Lot Number174
Outcome SOLD
Hammer Price£2800
Hammer Price (inc premium)£3220
Year1977
Condition rating0
Registration numberVRP 191S
Mileage-
Chassis numberGP84369J
Engine numberGP84369J
Engine capacity (cc)744
Engine - cylinders
Number of doors