Lot 377 - 1958 Triumph TR6B Bonneville Replica

Lot 377 - 1958 Triumph TR6B Bonneville Replica

Lot 377 - 1958 Triumph TR6B Bonneville Replica

Lot Number 377
Registration 158 XUL
Chassis Number 021156
Engine Number T120 021156
Odometer reading 0 miles
Estimate £8,000 - £10,000

The famed Triumph Bonneville is a direct descendant of the Edward Turner designed Speed Twin, or 5T, which made its debut in 1938. The Speed Twin was the trendsetter for the post war fashion of large capacity parallel twin-cylinder machines, which became the principal offering of the British motorcycle industry. A sports version was quickly developed, the legendary Tiger 100, which was strikingly finished in silver with a black stripe on the mudguards and a chromed front number plate surround.  It also featured megaphone -style exhausts with rounded ends and easily detachable tailpipes - classic Edward Turner styling cues which helped to create a very desirable machine.

In 1949, in order to increase sales in America, the design was enlarged to 650cc and the 6T Thunderbird was launched .The Thunderbird was launched publicly at Montlhéry near Paris, where three standard-production bikes were ridden around a circuit by a team of riders who between them averaged a speed of 92mph over a distance of 500 miles. All three machines were ridden to the circuit and back to the Meriden factory. In the quest to satisfy demand from America for ever more powerful machines, the sporting Tiger 110 was launched in 1953. With a top speed of almost 110mph, the new Tiger was Triumph's fastest production model to date and sold well, firmly establishing the brand as a favourite with sporting riders in America alongside the competition variant, the TR6 Trophy, which was especially popular with Californian desert racers. On 6 September 1956, at Bonneville Salt Flats, American racer Johnny Allen secured the motorcycle land-speed record on a heavily modified Triumph T110 with a top speed of 214.17mph.This success led to the development of the Tiger T110's successor - the Triumph Bonneville. Launched in 1959, the T120 Bonneville featured a high lift camshaft and twin Amal Monobloc carburettors as standard, enabling the new star of the Triumph range to record a top speed of 115 mph. The Bonneville remained in production, as Triumph's most sporting model, until 1983, when the Meriden factory closed and from 1985 to 1988 under licence by Les Harris.

The stunning Triumph offered here started life as a TR6B, a street scrambler intended for the American market and featuring twin high level exhaust pipes. It was purchased by the vendor from a Kent-based collector in 2011, as an unfinished project and has since been the subject of a total restoration to Bonneville specification and to a very high standard. The engine has been totally rebuilt with a new piston and a rebore, new big end and main bearings, valves and guides.  Although the engine has been turned over, showing good oil pressure, it has yet to be started.  The gearbox has also been rebuilt with new bearings and a new clutch plus a primary chain have been fitted. The competition magneto has been restored, the carburettors have been overhauled and the dynamo and voltage regulator have been reconditioned. New fork stanchions have been fitted with new bushes and oil seals, new wheel bearings, steering head bearings and swinging arm bushes. A new wiring harness has been fitted as well as new brake shoes and a restored speedometer. The wheels have been rebuilt with stainless steel spokes and this Bonneville Replica comes with a V5/C registration certificate and a VMCC Dating Certificate.

Interested parties should satisfy themselves as to the description and condition of each lot prior to the sale. Buyers are advised to inspect the car in person or use a professional to carry out this service.

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