1966 Matchless G80

1966 MATCHLESS G80- LAST OF THE LINE
The G80 was Matchless's top-of-the-line 500 single. Launched in 1949, just as civilian production was ramping back up after World War 2, it was soon competing against an entire field of new vertical twins from Triumph, BSA, Norton, and the rest. On the dirt, the mighty G80 faired quite well, and on the street the big single held its own against other big singles, which ruled the roads up until this time. However, times were changing and progress was on the march. As street bikes, the big singles couldn't hold a candle to a good vertical twin, in terms of power, and most importantly, vibration, or the lack of it. The 1966 Matchless G80 was the product of decades of development, enjoyed great success during it's lifespan (1949-1966) commercially and on the racetrack. But the end was drawing near. Matchless, and its sister-brand AJS, were both owned by AMC (Associated Motor Cycles, not to be confused with American Motors), along with Norton and some others. AMC struggled throughout the 1960s, paring off models and entire brands to try to find that profitable 'sweet spot'. By the early 60s, the only bikes AMC was producing were the Matchless and AJS singles (pretty much the same bike), and big Norton twins. Even this wasn't enough, and they slid into insolvency in 1967. The only brand that survived was Norton, and almost entirely because of the so-new-it-hadn't-come-out-yet Commando, which arrived in 1968. Alas, the market for big British singles had pretty much dried up, thanks in large part to the "Japanese Invastion". The 1966 Matchless G80 was the last big single that Matchless built, probably one of the last motorcycles of any kind. The G80 represented the archetypical British design and was perhaps the ultimate manifestation of it. Big air-cooled single with a small bore and very long stroke, cam gear and pushrods on the right driving rocker arms up to, primary chain driven off the left side, feeding a non-unit-construction gearbox out back. It was a classic design repeated many times by many British manufacturers, and it served them very well from about four decades.

1966 Matchless G80 SPECIFICATIONS

1966 G80 Models:

Engine type:

Displacement:

Bore & Stroke:

Compression ratio:

Fuel system:

Ignition system:

Lubrication system:

Engine output:

Primary drive:

Clutch:

Gearbox:

Final drive:

Wheelbase:

Suspension, front:

Suspension, rear:

Brake, front:

Brake, rear:

Dry weight:

Top speed:

1966 Matchless G80, G80C, G80CS, G80S

Air-cooled OHV vertical single

498cc / 30.2 ci

82.5mm X 93mm

7.3:1

1X Amal Monobloc 27mm carburetor

Lucas magneto

Dry sump

28 hp @ 5600 rpm

Chain

Multi-plate, wet

4-speed constant mesh, right-foot shift

Chain

55.0" / 1397mm

Teledraulic forks

Swing arm w/2 Girling dampers (shocks)

SLS drum

SLS drum

390 lbs / 177 kg

78 mph / 126 kmh


Check out these MATCHLESS BOOKS





Matchless: The Complete Story



Matchless, once the largest British motorcycle manufacturer



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



Motorcycle Apprentice: Matchless - in name & reputation (Classic Reprint)



History of Matchless Motorcycles



Matchless and Ajs Restoration



BOOK OF THE MATCHLESS 350 & 500cc SINGLES 1955-1966



AJS and Matchless: The Post-war Models



AJS and Matchless Gold Portfolio 1945-1966



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



For more like this, please visit our

MATCHLESS MOTORCYCLE BOOKSTORE








Please visit our
MOTORCYCLE BOOK STORE


Take a tour of our site...

HOME PAGE
Triumph Motorcycles
.....Bonneville
.....Tiger
.....Trophy
.....TR6
.....TR7
.....Trident
.....X-75 Hurricane
.....6T Thunderbird
.....5T Speed Twin
.....Daytona
.....Twenty-One
.....3T 350 Twins
BSA Motorcycles
.....A65
.....A10
.....A7
.....Gold Star
.....Bantam
.....Rocket 3
.....B50
Norton Motorcycles
.....Commando
.....Atlas
.....Dominator
.....Model 7
.....Manx
.....Navigator
AMC-Associated Motor Cycles
Matchless-AJS Motorcycles
.....G3
.....G9
.....G12
.....G80
Royal Enfield Motorcycles
.....Interceptor
.....Bullet
Ariel Motorcycles
.....Square Four
.....Red Hunter
.....Cyclone
Vincent Motorcycles
.....Black Shadow
.....Rapide
.....Comet
.....Egli-Vincent
Velocette Motorcycles
.....KSS
.....KTT
.....LE
.....MAC
.....Thruxton
.....Venom
.....LE
Rickman Motorcycles
Japanese Motorcycles
.....Honda
.....Kawasaki
.....Suzuki
.....Yamaha
Cafe Racers
....Triumph Cafe Racers
.....Norton Cafe Racers
.....Other Cafe Racers
Choppers & Bobbers
.....Choppers
.....Triumph Choppers
.....BSA Choppers
.....Rat Bikes
Classic Racing Motorcycles

Classic Motorcycle Events
.....Auctions
.....Shows
.....Rides
Classic Motorcycle Restoration
Classic Motorcycle Shops
Classic Motorcycle Clubs
Send us Pictures of YOUR BIKE
YOUR BIKE Pictures

HOME PAGE
.....About Us
.....Site Map
.....CONTACT US
.....Please visit our BLOG
.....Subscribe to our FREE e-zine BRIT IRON
.....BRIT IRON E-zine Back Issues

Visit our STORES
.....Motorcycle Books
.....Motorcycle Magazines
.....Motorcycle Calendars
.....Motorcycle Accessories
..........Motorcycle Helmets
..........Motorcycle Rain Suits
..........Motorcycle Locks & Security
..........Motorcycle T-Shirts
..........Motorcycle Diecast Models
..........GoPro Cameras
.....Motorcycle Parts
..........Motorcycle Tires
..........Motorcycle Chains
..........Motorcycle Batteries
..........Motorcycle Handlebars
.....Motorcycle Tools
..........Whitworth Tools
..........Tire Tools
..........Chain Tools

Crazy about cars, too? Check out our sister site:
www.American-Muscle-Cars.net

Back to top - 1966 Matchless G80
Updated 3/4/18

Learn how to BUILD YOUR OWN WEBSITE, like I did.

MERRY
CHRISTMAS



BREAKING NEWS:

BSA to Lauch in India First 



NEW PAGE:
Vintage Motorcycle Pictures



2019
 CALENDARS ARE HERE!



Visit our new
Motorcycle Store

WHITWORTH WRENCH & SOCKET SET



Please visit our
MOTORCYCLE BOOK STORE


Subscribe to your favorite
MOTORCYCLE MAGAZINES



BIKES FOR SALE!
Check out our
FREE
Classifed Ads



NEW SECTIONS:

Motorcycle Racing


THIS MONTH'S FEATURE PAGE:
Norton Commando Production Racer

NEW PAGES
added this month:

Norton Commando SS
1977 Triumph Sliver Jubilee
* 1979 Triumph T140D Bonneville Special
* Motorcycle Racing
* 1964 Matchless G3C
* 1955 BSA Gold Star
* AJS Motorcycles
* Helmet Features 2018
* AJS Motorcycles
* 1961 AJS Model 31
* 1959 AJS Model 16
* 1927 AJS Model H4
* 1959 AJS Model 31 CSR
* 1946 AJS Model 18
* 1964 AJS Model 16
* Norton Commando Hi-Rider
* 1953 AJS Model 18
* 1950 AJS 7R Boy Racer
Enjoy. More coming soon...