| 词条 | Levis (motorcycle) |
| 释义 |
The first Levis was made in the Norton works by designer Howard (Bob) Newey, but James Norton turned it down.[1] Newey then joined with the Butterfields, Arthur and Billy, and sister Daisy, to set up a motorcycle company (Newey later married Daisy). Their first model had a capacity of 211 cc.[1] Two-strokesIn 1916 the 211 cc vertical two-stroke engine produced {{convert|3|hp|abbr=on}}. An enclosed chain from the crankshaft drove the Fellows magneto and drive to the rear wheel was by Pedley ‘Vee’ belt. The machine weighed approximately {{convert|120|lb|abbr=on}}.[2] Their first racing success was in the Lightweight 250 class within the 1920 Isle of Man TT Junior race with a 247 cc machine, repeated in the 1922 TT Lightweight race. They then adopted the slogan, "The Master Two Stroke".[1] Levis built 211 cc and 246 cc three-port single-cylinder machines, including sporting versions. Most had {{convert|67|mm|in|1|abbr=on}} bore with a {{convert|70|mm|in|1|abbr=on}} stroke, and there was also a six port model.[3] Four-strokesFrom 1928 onward Levis produced 247 cc ({{convert|67|mm|in|1|abbr=on}} bore x {{convert|70|mm|in|1|abbr=on}} stroke) and 346 cc (70 mm bore x 90 mm stroke) four-stroke ohv machines and later added 498 cc and 600 cc ohv four-strokes. For a brief period a 346 cc side valve single, and also a 247 cc sohc single with chain-driven overhead camshaft were available.[3] CompetitionLevis two strokes, ridden by Geoff Davison, R. O. Clark, Phil Pike and others, won many races including the 1922 Lightweight TT, while the four strokes excelled off-road. Percy Hunt rode a 346 cc model successfully in races, and just before World War II Bob Foster gained many wins on a Levis ohv 598 cc bike in trials and moto cross.[3] PresentIn 2014 the brand of Levis motorcycles was acquired by David Redshaw of the Auto Crowd Group, a business providing online car, motorcycle, yacht and aviation clubs.{{citation needed|date=September 2016}} Models
(TS = Two Stroke)[3] References1. ^1 2 3 {{citation|url=http://www.ianchadwick.com/motorcycles/britbikes/brit_l.html|author=Ian Chadwick|title=British Bikes 1|accessdate=2006-11-26}} 2. ^{{citation|url=http://www.scienceandsociety.co.uk/results.asp?image=10221357&wwwflag=2&imagepos=1|publisher=ScienceAndSociety|title=Levis motorcycle, 1916|accessdate=2006-11-26}} 3. ^1 2 3 {{citation|title=The Illustrated Encyclopedia of Motorcycles|author=Erwin Tragatsch (ed.)|publisher=New Burlington Books|year=1979|edition=1988 Revised|pages=193–194|isbn=0-906286-07-7}} External links{{commons category|Levis motorcycles}}
3 : Defunct motor vehicle manufacturers of England|Vehicle manufacturing companies established in 1911|Defunct companies based in Birmingham, West Midlands |
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