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==Development== | ==Development== | ||
It was a long stroke single, always 79mm x 100mm bore and stroke, originally launched as a [[Sport bike|sports motorcycle]] but throughout its long life it was gradually overtaken by more powerful models. | It was a long stroke single, always 79mm x 100mm bore and stroke, originally launched as a [[Sport bike|sports motorcycle]] but throughout its long life it was gradually overtaken by more powerful models. | ||
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File:1946-norton-es2-500cc-single-7.jpg|1946 Norton ES2 500cc single | File:1946-norton-es2-500cc-single-7.jpg|1946 Norton ES2 500cc single | ||
</gallery> | </gallery> | ||
==1949== | |||
[[File:Norton ES2 motorcycle 1949.JPG|thumb|left|upright=0.8|1949 ES2]] | |||
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==Featherbed frame== | ==Featherbed frame== | ||
From 1959 it used the Rex McCandless designed [[Featherbed frame]], with upgrades 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 front and rear.<ref name= "The Motor Cycle">The Motor Cycle, Road Test, 4 June 1959</ref> The wideline Featherbed-framed bike was road tested in ''[[The Motor Cycle]]'' 4 June 1959 issue and was reported to have a mean top speed of 82 mph with petrol consumption of 56 mpg at 60 mph.<ref name= "The Motor Cycle"/> | From 1959 it used the Rex McCandless designed [[Featherbed frame]], with upgrades 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 front and rear.<ref name= "The Motor Cycle">The Motor Cycle, Road Test, 4 June 1959</ref> The wideline Featherbed-framed bike was road tested in ''[[The Motor Cycle]]'' 4 June 1959 issue and was reported to have a mean top speed of 82 mph with petrol consumption of 56 mpg at 60 mph.<ref name= "The Motor Cycle"/> |