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Brough Superior SS 100
Manufacturer	Brough Superior
Production	1924–1940
Predecessor	Brough Superior SS 80
Engine	998 cc (60.9 cu in) air cooled OHV 50° V-twin
Transmission	3-speed, hand-change gearbox, chain
Wheelbase	59 in (1,500 mm)
Fuel capacity	4.8 US gal (18 L; 4.0 imp gal)

The Brough Superior SS 100 is a motorcycle which was designed and built by George Brough in Nottingham, England in 1924.^[1] Although every bike was designed to meet specific customer requirements—even the handlebars were individually shaped^[2]—sixty-nine SS100s were produced in 1925 and at £170 (equivalent to £12,200 in 2023) were advertised by Brough as the "Rolls-Royce of Motorcycles".^{[better source needed]}^[3] The term was coined by a magazine road tester in his review of the bike, and Brough eventually obtained explicit permission to use it after a Rolls-Royce executive toured the Brough Superior factory.^[4] All bikes had a guarantee that they were capable of 100 mph (160 km/h).

The SS100 (Super Sports) was the first custom motorcycle^{[dubious – discuss]} with components chosen from many different suppliers. The first engine (from 1924 to 1936) was the twin-cam KTOR JAP (made by J. A. Prestwich) V twin (upgraded to a Matchless engine from 1936). Gearboxes were the 4-stud 3-speed from Sturmey-Archer, with a chain drive.^[4]^[5] Brough developed the features of the Harley-Davidson forks and produced his own version (made by the Castle Fork and Accessory Company) to combine light weight with strength that was to become a feature of the SS100 handling.^[6]

Development

After the initial introduction of the SS100, the Alpine Grand Sports, an SS100 with a full touring specification. was launched at the 1925 Motorcycle Show. In the same year Brough Superior produced a 110 mph (180 km/h)^{[citation needed]} Pendine Racing Model (named after the Pendine Sands where Malcolm Campbell set a number of world speed records) with increased ground clearance.

Every owner was encouraged by Brough to suggest their own ideas for developing the SS100, which meant that almost all his motorcycles were uniquely hand-built and the design continually evolving.^[6] The Sturmey-Archer gearbox was upgraded in 1929 for a three speed "super heavyweight" box to cope better with the 50 bhp (37 kW) produced by the JA Prestwich Industries (JAP) engine.^{[better source needed]}^[3] In 1928 Brough introduced rear suspension and in 1934 the Alpine Grand Sports gained a 75 hp (56 kW) overhead valve JAP engine known as two of everything as it had two magnetos and two oil pumps.^[7] A foot gear-change was introduced in 1935 and a four-speed Norton gearbox in 1936. Development on all Brough Superiors was stopped during the Second World War, when the factory was turned over to war work.

World records

The SS100 engineering was developed through competition and wins in over 50 events in the early 1920s, and Bert le Vack, who worked with Brough on development, was the holder of seven world records. In 1927 George Brough and Freddie Dixon both achieved a record 130 mph (210 km/h) for the kilometre on the SS100 and in 1928 Brough broke his own record with 130.6 mph (210.2 km/h). In 1932 Ronald Storey achieved 81.08 mph for the standing half-mile at Brighton and in 1939 Noel Pope secured an all time Brooklands track record lap time of 124.51 mph (200.38 km/h) on an SS100.^[6]

On 27 April 2008, at the Stafford Motorcycle show, the auctioneers Bonhams sold a 1934 Brough Superior SS100 for £166,500 – a world record and the highest price ever paid for a British motorcycle at auction.^[8] A new World Record for any motorcycle sold at auction was set on 22 October 2010, when a 1929 Brough Superior SS100 was sold at the Haynes International Motor Museum. The bike achieved £286,000.^[9]^[10]

T. E. Lawrence

T. E. Lawrence, Lawrence of Arabia, bought one of the first SS100s in 1925 having previously owned three Brough SS80s.^{[better source needed]}^[3] The crash that would end Lawrence's life came while riding another SS100, on a narrow road near his cottage near Wareham in 1935. The accident occurred because a dip in the road obstructed his view of two boys on bicycles. Swerving to avoid them, Lawrence lost control and was thrown over the handlebars.^{[better source needed]}^[11] He was not wearing a helmet and suffered serious head injuries that left him in a coma; he died after six days in hospital. One of the doctors attending him was the neurosurgeon Hugh Cairns. He consequently began a long study of what he saw as the unnecessary loss of life by motorcycle dispatch riders through head injuries and his research led to the use of crash helmets by both military and civilian motorcyclists. As a consequence of treating Lawrence, Sir Hugh Cairns ultimately saved the lives of many motorcyclists.^[12]

Lawrence's last SS100 (Registration GW 2275) was built in 1932 and is privately owned but has been on loan to the National Motor Museum at Beaulieu, Hampshire^{[better source needed]}^[13] and the Imperial War Museum in London.^[14]

In the TV series George and Mildred, George Roper rode a 1934 11-50s Brough Superior sidecar combination, registration number ATO 574.

New SS100

In 2013 the Brough Superior company unveiled plans to build a new SS100 as a 90th anniversary tribute to the most famous Brough Superior model. The first new SS100s were delivered in 2015 and each was made to order.^[15]

The new SS100 has a 997 cc (60.8 cu in) DOHC 88° V-twin engine developed and built with French specialists Akira Engineering of Bayonne that produces 120 hp (89 kW).^[16] Produced at Henriette's Boxer Design factory in Toulouse, France, the new SS100 is hand built.^[17] The chassis is an expensive mix of magnesium, titanium, and aluminium with carbon-fiber wheels and a double-wishbone front fork. The brakes are Behringer from the aircraft industry with four-disc front brakes, motorcycling's first.

References

^ ^a ^b Walker, Mick (23 August 2006). Motorcycle: Evolution, Design, Passion. The Johns Hopkins University Press. pp. 68–69. ISBN 978-0-8018-8530-3.
^ Kemp, Andrew (2001). Classic British Bikes. Bookmart Ltd. pp. 69. ISBN 978-1-86147-058-4.
^ ^a ^b ^c Brough Owners Club accessed 2008-05-05 Archived 29 February 2008 at the Wayback Machine
^ ^a ^b Cathcart, Alan. "Brough Superior SS100". Motorcycle Classics March/April 2012.
^ Wilson, Hugo (1993). The Ultimate Motorcycle Book. London: Dorling Kindersley. pp. 66–67. ISBN 978-0-7513-0043-7.
^ ^a ^b ^c Simms, Colin (1984). Brough Superior SS100. Haynes publishing group. ISBN 978-0-85429-364-3.
^ ManxNorton.com. "Brough Superior Motorcycles". Classic Motorcycles by Sheldon's Emu.
^ Bonhams Press release accessed 2008-05-07 Archived 6 May 2008 at the Wayback Machine
^ Shearer, Joe (25 October 2010). "Brough sells for record £286,000". Motor Cycle News. Retrieved 13 April 2018.
^ "H&H; Brough sets world record - Classic Bike Guide Magazine". Archived from the original on 8 July 2011. Retrieved 12 November 2010.
^ Paul Harvey, The Rest of the Story, KGO 810AM, August/September 2006.
^ Maartens, N. F.; Wills, A. D.; Adams, C. B. (2002). "Lawrence of Arabia, Sir Hugh Cairns, and the origin of motorcycle helmets". Neurosurgery. 50 (1): 176–9, discussion 179-80. doi:10.1097/00006123-200201000-00026. PMID 11844248. S2CID 28233149.
^ "Brough Superior Club accessed 2008-05-05". Archived from the original on 3 October 2011. Retrieved 5 May 2008.
^ Wasef, Basem (15 October 2007). Legendary Motorcycles. Motorbooks Publishing. pp. 95–99. ISBN 978-0-7603-3070-8.
^ "The 2015 SS100". Brough Superior. Archived from the original on 19 October 2016. Retrieved 19 October 2016.
^ d'Orleans, Paul (19 October 2016). "Road Testing The 2017 Brough Superior SS100". Cycle World. Retrieved 27 January 2017.
^ Brown, Roland (8 August 2016). "Telegraph review of new SS100". Telegraph. Retrieved 19 October 2016.