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Brough Superior up for auction valued at £320,000

1929 SS100 Alpine Grand Sport part of Bonham’s Bond Street Sale

A 1929 Brough Superior SS100 Alpine Grand Sport due to go under the hammer next month has been valued at £270,000 - £320,000.

The bike is up for auction at Bonham’s Bond Street Sale, set to take place on Sunday 30 November.

The Brough's namesake, the Alpine Trial, was a gruelling reliability run started in 1910. Taking in mountain peaks, chilling temperatures, and the twists and turns of Austria, Croatia, Slovenia and the infamous Stelvio Pass, it was a test of endurance and skill.

George Brough - founder of the motorcycle marque – undertook the Trial in 1925 on an SS100, resulting in the award of six cups, including one for 'Best Performance’. 

The design of the Brough Superior Alpine Grand Sports took inspiration from its founder's achievement, and was introduced to the market in 1925 for the 1926 season with a lower compression ratio, a small fly-screen and a pair of tool boxes as standard.

Ben Walker, Director for Bonhams Motorcycle Department said: 'Brough Superior is a legendary marque in the motorcycle world. Coined the "Rolls-Royce" of motorcycles, their distinguished status is well earned, with Brough products of the highest quality and engineering excellence, admired by all and highly sought-after – almost 100 years after the Haydn Road Works first opened their doors.

"The most charismatic of the marque's stable is unquestionably the SS100 and we are delighted to be offering the model in its ultimate guise, a Vintage example in Alpine Grand Sport specification, boasting matching registration, frame and engine numbers - designed to honor the legendary Alpine Trial – the most arduous motoring test of its time.”

A new Brough Superior SS100, unveiled as a prototype two years ago, is expected to make an appearance at the international motorcycle show in Milan next week.

The new bike uses a 997cc V-twin to make a claimed 100-140hp depending on ECU settings.

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