 1971 Triumph T100R Daytona | |
| Manufacturer | Triumph |
|---|---|
| Also called | T100R |
| Production | 1967–1974 |
| Engine | 490 cc (30 cu in) air-cooled, ohv parallel-twin |
| Bore / stroke | 69 mm × 65.5 mm (2.72 in × 2.58 in) |
| Power | 41 bhp (31 kW) @ 7,400 rpm[ citation needed ] |
| Transmission | 4-speed gearbox with chain final drive |
| Wheelbase | 53.6 inches (1,360 mm) |
The Triumph Tiger Daytona is a motorcycle made by Triumph from 1967 to 1974. [1]
The 'Daytona' name was derived from American rider Buddy Elmore's win at the 1966 Daytona 200 race held at the Daytona International Speedway in Daytona Beach, Florida. [2] He achieved an average speed of 96.6 mph (155.5 km/h) on a 'works special' Triumph Tiger 100. [1]
The 500 cc Triumph Tiger 100 Daytona (T100T) was developed by Triumph's Chief Engineer and designer Doug Hele and launched as a production motorcycle the following year. [1] Based on the setup developed for the 1966 Daytona races, the T100T was fitted with a new cylinder head and twin Amal Monobloc carburettors. In the head, the valve angle was reduced by two degrees and the intake valve size increased as a result of testing; the valves on test engines had a worrying tendency to meet during the overlap period. [3]
Derived from Edward Turner's original twin-cylinder design and a development of the Triumph Tiger, the 'Daytona' sacrificed low-speed tractability for a pronounced power step at 3,500 rpm that helped it to compete with the advanced designs from Japanese manufacturers like Honda. As well as decreased engine flexibility, however, the increase in power reduced the life of the valve gear, leading to heavy oil consumption.
Gary Nixon won the 1967 Daytona 200 race on the newly designated Triumph Daytona.
In 1969, the timing side main bush was replaced with a ball-bearing race and a roller on the drive side which helped engine life. [4] At the 1969 Belgian motorcycle Grand Prix on the Circuit de Spa-Francorchamps in the Ardennes, Triumph's factory tester Percy Tait led the world champion Giacomo Agostini for three laps and finished second at an average speed of 116 mph (187 km/h) on the Daytona. [5]
The later model Daytonas were further upgraded with special E3134 race profile cams for both inlet and exhaust and strengthened followers, valve guides, and performance connecting rods. [6] While the Triumph 650 Bonneville and new 650 Tiger models received a new oil in frame and dramatically changed geometry for 1971, the Daytona kept the traditional unit era frame, which kept the frame and seat height of the previous model years. [7] The last Daytona model, the T100D, was fitted with a disc front brake but only 14 were built before the closure of the Meriden works in September 1973 and the 18-month 'sit-in' industrial action after which the Daytona models were discontinued. [1]
Triumph Engineering Co Ltd was a British motorcycle manufacturing company, based originally in Coventry and then in Meriden. A new company, Triumph Motorcycles Ltd, based in Hinckley, gained the name rights after the end of the company in the 1980s and is now one of the world's major motorcycle manufacturers.
The Triumph Trident and BSA Rocket 3 was a technically advanced, high-performance roadster motorcycle made by Triumph Engineering and BSA from 1968 to 1975, and sold under both the Triumph and BSA marques. Alongside the Honda CB750, and later the two-stroke Kawasaki triples, it brought a new level of sophistication to street motorcycles, marking the beginning of the superbike era. The Honda CB750 overshadowed the Trident to be remembered as the 'first superbike', in spite of the Triumph Trident actually debuting before the Honda by a few weeks.
The Triumph Bonneville is a standard motorcycle featuring a parallel-twin four-stroke engine and manufactured in three generations over three separate production runs.
Edward Turner was an English motorcycle designer. He was born in Camberwell in the London Borough of Southwark, on the day King Edward VII was proclaimed King. In 1915, Turner had his first ride on a motorcycle, a Light Tourist New Imperial.
Douglas Lionel Hele was a pioneering British motorcycle engineer with Triumph and other firms: BSA, Douglas and Norton. He was born in Birmingham in 1919 and died in Hagley, Worcestershire on 2 November 2001.
The Tiger 100 (T100) was a standard motorcycle first made by the British motorcycle company Triumph in 1939. Production ceased when the Triumph factory was destroyed by German bombing in 1940 during World War 2, but recommenced in 1946. Several variants were manufactured until 1973.
Triumph Motorcycles Ltd is the largest UK-owned motorcycle manufacturer, established in 1983 by John Bloor after the original company Triumph Engineering went into receivership. The new company, initially called Bonneville Coventry Ltd, continued Triumph's lineage of motorcycle production since 1902. They have major manufacturing facilities in Thailand.
The Dominator is a twin cylinder motorcycle developed by Norton to compete against the Triumph Speed Twin. The original Dominator was designed in 1947 and 1948 by Bert Hopwood, who had been on the Speed Twin design team at Triumph. Available for sale from mid 1949, this design set the pattern for Norton twins for the next 30 years.
The featherbed frame was a motorcycle frame invented by the McCandless brothers and offered to the British Norton motorcycle company to improve the performance of their racing motorcycles in 1950. It was considered revolutionary at the time, and the best handling frame that a racer could have. Later adopted for Norton production motorcycles, it was also widely used by builders of custom hybrids such as the Triton, becoming legendary and remaining influential to this day.
The BSA A7 was a 500cc motorcycle model range made by Birmingham Small Arms Company (BSA) at its factory in Armoury Road, Small Heath, Birmingham. The range was launched in 1946 using a 495 cc (30.2 cu in) long stroke engine. An improved 497 cc (30.3 cu in) version based on the BSA A10 engine was launched in 1950. The various A7 models continued in production with minor modifications until 1961/2 when they were superseded by the unit-construction A50 model.
The Triumph Bonneville 790 cc is a British motorcycle that was designed and built in Hinckley, Leicestershire by Triumph Motorcycles Ltd between 2001 and 2007, when the engine size was increased to 865 cc.
The Triumph Bonneville T120 is a motorcycle originally made by Triumph Engineering from 1959 to 1975. It was the first model of the Bonneville series, which was continued by Triumph Motorcycles Ltd. The T120 was discontinued in favour of the larger 750 cc T140 in the early 1970s.
The Triumph Bonneville T140 is a standard motorcycle with a 750 cc (46 cu in) capacity engine that was designed and built by Triumph Engineering at Meriden near Coventry.
Brian Jones was a motorcycle designer and engineer born in Gloucester, United Kingdom in 1928. Notable for his contribution to the original design of the Triumph Bonneville, he died in Coventry, on 4 March 2001.
BSA motorcycles were made by the Birmingham Small Arms Company Limited (BSA), which was a major British industrial combine, a group of businesses manufacturing military and sporting firearms; bicycles; motorcycles; cars; buses and bodies; steel; iron castings; hand, power, and machine tools; coal cleaning and handling plants; sintered metals; and hard chrome process.
The BSA unit twins were a range of unit construction twin-cylinder motorcycles made by the Birmingham Small Arms Company (BSA) and aimed at the US market. A range of 500 cc (31 cu in), 650 cc (40 cu in) and 750 cc (46 cu in) twins were produced between 1962 and 1972, but they were really developments of the older pre-unit A7/A10 model range with less weight. The engines had a reputation for vibration, but acceleration was good for the time, to a top speed of 100 miles per hour (160 km/h).
The BSA A10 series was a range of 646 cc (39.4 cu in) air-cooled parallel twin motorcycles designed by Bert Hopwood and produced by Birmingham Small Arms Company at Small Heath, Birmingham from 1950 to 1963. The series was succeeded by the A65 unit construction models.
Bridgestone motorcycles were a division of the Bridgestone Tire Co. of Kyōbashi, Tokyo, Japan that produced mopeds and motorcycles from 1952 to 1970. Initially producing power assisted bicycles, the division moved on to producing mopeds and then motorcycles. The motorcycles were technologically advanced and powered by two-stroke engines. The high technical specification resulted in the machines being more expensive compared to other manufacturers models. Production was stopped in 1970 to protect the supply of tyres to other manufacturers.
The BSA/Triumph racing triples were three cylinder 750 cc racing motorcycles manufactured by BSA/Triumph and raced with factory support from 1969-1974. There were road racing, production racing, endurance racing and flat track variants. The machines were based on the road-going BSA Rocket 3/Triumph Trident.
The Norton Model 88 Dominator, also originally known as the Dominator De Luxe was a 500 cc vertical twin motorcycle manufactured by the British Norton Motorcycle Company from 1952 to 1966. It was the first of Norton's motorcycles to use the featherbed frame, which established Norton's reputation of producing fine handling machines. The 88 used the Bert Hopwood designed engine that was first fitted to the Model 7 and was initially for export only. It became available on the home market in 1953. Norton were a small manufacturer at the time and without the economies of scale the model was expensive compared to other manufacturer's equivalent machines. The 88 retailed for 20% more than the contemporary Triumph Speed Twin and was dearer than the 650 cc Triumph Thunderbird.
