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Typhoon register kept by Rick Mann, it is now estimated that 225 to 300 were made by the factory over a four-year period, and almost all of them were sold in the US. The rarest of these is the single down tube framed version, the 1959 G80TCS, and its even rarer identical sister the 1959 AJS 18TCS. This one year only variant with a slightly smaller cylinder capacity, had a frame that when thrashed was less robust than the models that followed. Nevertheless, it is often favored over the duplex framed TCS models (1960 to 1962) because of its lighter weight and easier maneuverability. There was a road model with lights and a competition model without lights.
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The 500 cc "long stroke" G80CS was produced from 1951 through 1955. In 1956 it was replaced by the shorter stroke, larger bore models that used the same numeric codes. The bore of these early G80CS's was 82.5 mm (3.25"), while the 1956 through 1966 "short stroke" (final version) models had
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of 5.9:1, because of the poor quality fuel available in the United
Kingdom immediately after the Second World War. In 1949 the hairpin valve springs were back, after the use of conventional coil valve springs in wartime engines. By 1951 the G80 had an alloy cylinder head and the barrel fins now went
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Matchless also made a 600 cc version of the G80 called
Typhoon from 1959 to 1962. The engine prefix code was TCS on these bikes. The bore was increased to 89 mm, while the stroke was increased from 85.5 mm to a whopping 96 mm. Based on the number of currently known TCS's on the
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The magneto on an AJS was in front of the cylinder, and the
Matchless magneto was behind. A design originating in the 1930s, the Matchless was updated with a spring frame (swingarm) rear suspension in 1949, becoming the G80S. The suspension was a vast improvement on the bouncy rigid rear end but
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and was more flexible at low revs. The earlier long stroke version might not quite reach 80 miles per hour (130 km/h), but it could trundle along at less than 20 miles per hour (32 km/h) in top gear. It also gave good fuel economy.
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switchgear. The model was offered in colours of silver, black or metallic burgundy. Although electric start and twin disc brakes were options, priced at £2700 (£500 more than a
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units were introduced in 1949. The initial "Candlestick" shocks held only 50 cc of SAE 20 weight oil. Leak prone, they were replaced by the "Jampot" shocks in 1951, and by
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singles. The
Matchless G80 is typical of this era. The earliest G80 is sometimes referred to as a G80L, the L signifying "Teledraulic" forks, rather than girder forks.
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Engine numbers usually start with the year of production, followed by model designation, and completed with the production number of the motorcycle.
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The leaky pressed-steel primary chain-case first appeared on AMC machines in the 1930s. In 1958 an alloy cover primary chain-case became available.
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range – the road bikes were very similar, often with only the badges distinguishing one marque from the other; the equivalent AJS being the
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4-stroke, single over-head cam (SOHC), 500cc engine. Components from Italy such as front and rear Paioli suspension,
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a bore of 86 mm. The C is for
Competition (Scrambles) and the S for Suspension (not a rigid rear frame).
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motorcycle of similar specification), this was not a successful machine and production ended by 1990.
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all the way to the base on competition models. The compression ratio was increased to 7.3:1 in 1956.
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105:(AMC) between 1946 and 1966. During the 1950s and 1960s, the main export product for AMC was the
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399:. Horncastle: Mortons Media Group Ltd. 25 February 2010. Archived from
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216:, a new "Matchless G80" single was released powered by an Austrian
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disc brakes were used whilst, harking back to his licence-built
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rear suspension design for its top models. Vertical
208:Launched in 1987 by motorcycle spares businessman,
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344:Westworth, Frank (December 1987). "A New Dream?".
57:498cc Single cylinder, pushrod 2 valve, 4 stroke
365:"Harris Matchless G80- Alternative Spares List"
283:AJSOC.com 1947 G80 (Retrieved 31 December 2006)
125:In the early 1950s, the most popular British
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156:shocks in 1956. In 1957, AMC switched from
179:Low compression meant that it was easy to
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67:28 bhp (21 kW) @ 5,600 rpm
101:500 cc British motorcycle built by
77:4-speed AMC gearbox to final drive chain
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39:Associated Motor Cycles (AMC) (London)
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434:Motorcycles introduced in the 1940s
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263:List of motorcycles of the 1950s
258:List of motorcycles of the 1940s
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171:The engine was released with a
372:The AJS and Matchless Archives
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160:gearboxes to their own make.
318:"BSA Golden Flash on test",
87:1,397 mm (55.0 in)
363:Archer, Glenn (July 2005).
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137:wheel travel was limited.
393:"A Matchless masquerade?"
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234:Triumph Bonneville T140s
204:Les Harris Matchless G80
103:Associated Motorcycles
429:Matchless motorcycles
346:Motorcycle Enthusiast
305:www.totalbikebits.com
403:on 10 December 2010
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397:Classic Bike Guide
320:Classic Bike Guide
212:, and designed by
18:Type of motorcycle
332:Typhoon registry
173:compression ratio
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301:"Articles - AJS"
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188:Model variations
140:AMC had adopted
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228:silencers and
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150:shock absorber
144:'s twin-shock
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95:Matchless G80
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22:Matchless G80
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405:. Retrieved
401:the original
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377:16 September
375:. Retrieved
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240:battery and
224:carburetor,
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127:four-strokes
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73:Transmission
47:1949 to 1966
36:Manufacturer
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214:Brian Jones
129:were still
121:Development
423:Categories
352:(11): 6–9.
322:, May 2008
269:References
226:Lafranconi
210:Les Harris
181:kick-start
44:Production
142:Velocette
111:Matchless
83:Wheelbase
407:22 March
252:See also
222:Dellorto
146:swingarm
115:Model 18
154:Girling
131:pushrod
246:Yamaha
242:Magura
230:Brembo
167:Engine
158:Burman
53:Engine
368:(PDF)
238:Varta
218:Rotax
97:is a
63:Power
409:2015
379:2018
93:The
107:AJS
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288:^
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350:6
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109:/
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