1946 AJS Model 18

1946 AJS MODEL 18 BACKGROUND
Immediately following the end of World War II in 1945, every British motorcycle manufacturer rushed to convert from war production back to making civilian products. Millions of British troops were coming home, and they would all need transportation. But economic times were tough in England after the war, and many couldn't afford a car, so cheap, reliable motorcycles filled the need. While all of the brands had high performance 'halo' products that the magazines gushed over, they made most of their money selling basic commuter bikes to the British home market. During the war, AJS's parent company AMC produced Matchless G3/L military bikes for the British, in both 350 and 500cc. When the war ended, they quickly civilianized the bikes, creating the Matchless G3 and it's sister bike, the AJS Model 18. While the two brands were styled differently from each other, mechanically they were nearly identical. In fact, the only mechanical difference between the two brands was the the AJS mounted it's magneto in front of the cylinder, while the Matchless mounted theirs behind.

Engine type

Displacement

Bore & Stroke

Compression Ratio

Carburetor

Ignition system

Engine output

Gearbox

Wheelbase

Seat Height

Dry Weight

Suspension, F/R

Brakes, F/R

Tires, F/R

Fuel capacity

Top speed

Air-cooled OHV single

498cc / 30.0ci

82.3mm X 95mm

6.26:1

Amal 89B

Lucas magneto

25hp @ 5400rpm

4-speed, right-foot shift

57.25" / 1454mm

31.0" / 787mm

386 lbs / 175kg

Telescopic forks / 2 shocks

7" SLS drum / 7" SLS drum

3.25" X 19" Dunlop

3.6 US gal / 13.6L

85 mph

Check out these AJS BOOKS


AJS: The Complete Story (Motoclassics)



AJS and Matchless Post-War Singles and Twins: The Complete Story



BOOK OF THE AJS SINGLES 1955-65 350cc & 500cc



AJS 7R3A 'TRIPLE KNOCKER' ISLE OF MAN TT WINNER: This bike beat all of the European opposition to win the 1954 Isle of Man TT (THE MOTORCYCLE FILES Book 22)




Illustrated Ajs and Matchless Buyer's Guide (Illustrated Buyer's Guide)



The AJS 7R



AJS and Matchless Gold Portfolio 1945-1966



AJS and Matchless: The Post-war Models



BOOK OF THE AJS 350cc & 500cc OHV SINGLES 1945-1960



The AJS 7R (Redline Motorcycles) (Redline Mptprcycles) by Mick Walker published by Redline Books (2002)



PLEASE BUY MY NEW E-BOOK HERE
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The Random History of Classic British Motorcycles, Volume 1




Comprehensive Vintage Motorcycle Price Guide 2020-2021

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Updated 12/9/20

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