1931 Brough Superior SS100 George Brough took quite a lot of delight in every of his Brough Superior bikes, having ridden every bike personally to ensure its efficiency, however this 1931 SS100 mannequin is particularly important. Specifically ready for the 1931 Olympia Motor Cycle Present, this SS100 carries manufacturing facility ‘present mannequin’ stampings and enhanced cosmetics, and has been with its present proprietor since 1973.
High quality and efficiency had been Brough’s utmost considerations, however by the mid Nineteen Twenties, a extra critical contender was wanted to match the output of America’s Harleys and Indians. Brough began with a 867 cc JAP OHV v-twin, however ultimately moved as much as 980 and 996 cc JAP OHV twins for the brand new SS100 mannequin. The fork was a modified Harley springer, and a proprietary rear suspension system was optionally available. George Brough personally licensed that each SS100 mannequin was able to at the very least 100 mph.
To make the most important influence on the Olympia Motor Cycle Present, this SS100 obtained a particular mixture of black paint and chromium plating on the gas tank, mudguards and wheels. Whereas it’s now lined by a layer of outdated black paint, the vendor states that the present paint continues to be current. Given the particular significance and well-documented historical past of this Brough Superior SS100, Bonhams estimates the bike will promote for between $187,000 and $225,000.
1930 Montgomery-JAP 996 William Montgomery invented the bike sidecar, and up till World Struggle I, his firm targeted on effective commuter cycles with revolutionary sidecars affixed. It took a number of years to renew manufacturing after the struggle, however after they did, Montgomery bikes had been among the quickest and highest high quality bikes of the period.
This 1930 Montgomery was possible one of many firm’s most unique choices of the day, because it’s powered by a 996 cc side-valve JAP v-twin — possible good for round 26 hp. Heavy use of sharpening and chrome with black paint provides this Montgomery timeless visible attraction, and the bike is claimed to be in excellent unique situation. Bonhams estimates a hammer value between $63,000 and $69,000.
1932 Matchless Mannequin X The Matchless title was established by success in street racing, particularly its single-cylinder fashions on the Isle of Man. However as early as 1912, the corporate was experimenting with bigger v-twins outfitted for sidecar responsibility.
One of the in style Matchless cycles of the interval was the charming Mannequin X, which was match with a proprietary v-twin engine and a bolstered rear body part for sidecar use. The Mannequin X stayed in manufacturing from 1929 to 1940, and was able to speeds over 80 mph. Even after its side-valve v-twin was outclassed by the most recent OHV v-twins within the Nineteen Thirties, the Mannequin X continued to promote, and the Matchless v-twin was utilized in different British bikes of the period.
Bonhams’ lot 492 is a 1932 Matchless Mannequin X with matching numbers and an older restoration. The lot is anticipated to carry between $25,000 and $30,000.
1930 Scott Flying Squirrel Like so a lot of his friends, Alfred Angas Scott acquired his begin within the early days of motorized bicycles. Scott believed within the energy of two-strokes, and his water-cooled engines simply outclassed related four-strokes from 1908 to 1914. Competitors wasn’t his unique intention, however he acknowledged the gross sales potential, and his bikes achieved notable victories on the Isle of Man and in hillclimb racing.
The Squirrel was Scott’s return to type mannequin after World Struggle II, and the mannequin developed into the Flying Squirrel by 1946. Energy got here from 498 and 596 cc two-strokes, cooled by a large aluminum radiator. Relative efficiency wasn’t as dominant as Scott’s earlier machines, however was nonetheless fairly sporty for the interval.
Bonhams’ lot 340 is a 1930 mannequin Flying Squirrel with a 596 cc engine sourced from an earlier Tremendous Squirrel. The pre-auction estimate is available in at $8,800 to $11,000.
1963 Honda CR72 It was a large held perception within the Nineteen Fifties that four-stroke bikes couldn’t compete with two-strokes in street racing, that’s till Honda rewrote this system in 1961. By incorporating a staggering quantity of valvetrain expertise, Honda introduced residence a 250 class world championship title in 61, and kicked off an period of street racing dominance.
Honda’s CR72 was based mostly on the CB72, however was upgraded for competitors use with twin overhead camshafts, 4 valves per cylinder and a six-speed transmission. The CR was good for 41 hp and 12,500 rpm, and was a unbelievable performer for Honda’s manufacturing facility group at grand prix and quick circuit occasions.
This explicit 1963 Honda CR72 was raced in interval by Jim Redman and Bruce Beale, and has since been ridden by Redman at trendy traditional occasions. The bike has been restored, and has been in its present proprietor’s care since 1971. Contemplating Redman’s notable competitors profession with Honda, Bonhams estimates the bike will promote for between $149,000 and $186,000.