Highlights

JAP 680 side-valve 5/15 V-twin engine dated 1922
Bonniksen Rotherhams 100mph speedometer
Sturmey Archer four-stud heavyweight gearbox
Built around a Triumph 1938 rigid converted frame

The Appeal

George Brough's legendary motorcycles earned the moniker "the Rolls-Royce of motorcycles" for good reason, and remain among the most coveted machines on the scene. Genuine examples command extraordinary sums - so it's little wonder some skilled enthusiasts have started putting together evocative replicas. One of these with period-correct components is bound to turn heads - a great avenue into the Brough Superior mystique.

This 680 replica project has been built around a Triumph 1938 rigid-converted frame and is powered by a JAP 680cc side-valve 5/15 V-twin engine dated 1922 - a powerplant entirely in keeping with the Brough Superior ethos. The specification extends to a Sturmey Archer four-stud heavyweight gearbox, a Lucas 50-degree V-twin magneto, an Amal twin carburettor, and a Bonniksen Rotherhams 100mph speedometer - a particularly desirable period instrument. The exhausts have been carefully fabricated as a pattern to ensure correct alignment once the build is complete.

This is a non-running project, and further work is required to bring it to completion, including machining of the engine internals and externals, fitting of frame steering collars, and connecting nuts for the carburettor manifold. That said, the vendor states that the work carried out to date is of a high standard, and describes the motorcycle as a very beautiful and desirable-looking machine. For a builder with the skills and ambition to see it through, this is bound to be a very rewarding project.

History and Paperwork

The motorcycle is not currently registered
MOT-exempt
Odometer reads 8,628 miles but is inoperative

The Details

Replica motorcycle project, non-running
Built around a Triumph 1938 rigid converted frame, number TL5462
Bonniksen Rotherhams 100mph speedometer, ref 2052/12
Engine capacity of 680cc
Manual transmission with three gears
JAP 680 side-valve 5/15 V-twin engine, number GT/E 5845, dated 1922
Sturmey Archer four-stud heavyweight gearbox, number HW 38857
Lucas 50 degree V-twin magneto, ref KV 381 A 124
Amal twin carburettor, type 27/013
Exhausts were made as a pattern to ensure correct alignment and avoid fouling the frame, engine, etc. once the motorcycle is complete
Carburettor manifold requires connecting nuts
Frame steering collars are required
Engine internals and externals require some machining

BEFORE YOU BUY

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