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The ES2 is a Norton motorcycle first produced in 1927. It was a long stroke single, always 79mm x 100mm bore and stroke, originally launched as a sports motorcycle but throughout its long life it was gradually overtaken by more powerful models. It remained popular due to its reliability and ease of maintenance, as well as the traditional design. From 1947 the ES2 had an innovative hydraulically damped telescopic front fork and race developed rear plunger suspension. From 1953 it had a single downtube swinging-arm frame and was uprated to the Rex McCandless Featherbed frame in 1959, featuring an improved AMC gearbox, revised cylinder head, crankshaft-mounted Lucas RM15 60-watt alternator with coil ignition and an 8-inch front brake with full width hubs.〔The Motor Cycle, Road Test, June 4, 1959〕 The wideline Featherbed-framed bike was road tested by The Motor Cycle June 4, 1959 and found to have a mean top speed of 82 mph and with petrol consumption of 56 mpg at 60 mph.〔 For 1961, in common with other large-engined Nortons, the bike was further improved with the ''Slimline'' frame with upper frame rails narrowed and a restyled slimmer tank.〔(【引用サイトリンク】title=Norton ES2 )〕 The last Norton ES2 was produced in 1964, but a Matchless-based machine with Norton badges was produced for a further two years before final discontinuation, coincident with the commercial failure of the AMC Group.〔''Motorcycle Mechanics'', December 1964, editorial p.3 ''(Earls Court) Show - not much new. "Two Matchless singles christened the Mark II versions of famous and former Norton models by virtue of a Norton badge ''". Accessed and added 2015-01-21〕〔''Motorcycle Mechanics'', December 1964, pp.29-31 ''What's new? Bill Lawless takes a look at the 1965 models. "Messrs AMC reintroduce the once popular Model 50 and ES2 Nortons by calling them the Mark II models and sticking Norton badges on Matchless G3 and G80 machines ''". Accessed and added 2015-01-22〕 ==References== Bacon, R, Norton Singles, Osprey Publishing, 1983 Power Output: 21 hp Fuel capacity: 2.75 Imp gal (1947-58), 3.5 Imp gal (1958-63 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Norton ES2」の詳細全文を読む スポンサード リンク
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