Brough Superior - Mk II
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Brough Superior D2-492-36-07
Photo ou archives : F-M. Dumas
3607

Capacity : 750
Model : Mk II
Production : 1920 -
Category : (R) Street Bike
   

BROUGH SUPERIOR

750 Mk II -1920

British superiority, Swiss heart

Founded in 1919, Brough Superior launched its second model in 1921. The firm was not committed to using JAP V-twins exclusively, though during its long collaboration with George Brough, the Tottenham company always provided him with "special" engines.

A Swiss Long-Stroke

In order to make the Brough truly "superior" to other marques that assembled proprietary engines, transmissions and other components, George Brough always required his suppliers to make improvements (which he very often devised himself). For the 750 Mk II, he chose the Geneva-built MAG, a highly regarded power unit of the day. It was a longstroke V-twin with overhead intake and side exhaust valves, a legacy of the days when intake valves were automatically operated by the suction of the piston.

Unsurpassed Finish

The "Brough Special" MAG was fitted with a single Amac carburetor and developed 13.6 hp at 3280 rpm. The Sturmey-Archer three-speed gearbox (another Brough exclusive) incorporated a transmission shock absorber. The finish of the Brough Superior was unsurpassed: Four coats of enamel were applied over a rubber-based anti-rust finish, all the light-alloy components were polished with buffalo hide and the cylinders were nickel-plated. The Brough was an esthetic masterpiece, with dual exhausts combining in a cast-aluminum muffler ahead of the crankcase – and tremendously advanced for 1920 – the streamlined plated saddle tank that would characterize Brough Superiors over the years.

SPECIFICATIONS

Engine: 748cc (72x90mm) MAG type 2C14 air-cooled V-twin four-stroke

Power Rating: 13.6 hp @ 3280 rpm

Valves: F-head

Fuel System: Amac carburetor

Transmission: 3-speed Sturmey-Archer, hand-shift, chain final drive

Suspension: girder forks (front); rigid (rear)

Brakes: drum (front); dummy belt rim (rear)

Wheels: 650x65mm clincher (front & rear)

Maximum Speed: 80 mph

In terms of finish and refinement, the Brough truly was superior; even the Lycett saddle was a special order. This Mk II 750 has dual foot rests, for touring or speed work.


Motorcycle encyclopedia Moto Passion, realised by François-Marie Dumas, include almost 2000 photos presented with an exhaustive history of the motorcycles exhibited.

This unique collection has been realised with the participation of many specialists. With many thanks in particular to Yves Campion, Michael Dregni, Didier Ganneau, Jean Goyard, Helmut Krackowizer, Michel Montange, Christian Rey, Bernard Salvat, Mick Woollett, etc

One can order here

  • Original cards on paper (in french)
  • High resolution scans or original documents presented and signed with my name.

Please contact me at info@moto-collection.org for conditions and copyright.





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