1963 Matchless G12CS

1963 MATCHLESS G12CS - A BRIEF HISTORY
In 1963 there were four models offered of the G12. There was the Standard, De Lux, the CS (Competition Sport) and the CSR (Competition Sport, Road). They all were 646cc vertical twins with the 4-speed AMC gear box, Lucas magneto ignition. The CS and CSR came with alloy fenders, siamezed exhaust, and quick detachable headlight. The CS had a small 2-gallon competition fuel tank, skid plate and western style handlebars. An option offered for these bikes was a speed kit that consisted of 10.5:1 compression pistons, hotter camshaft and dual carburetors. These additions proved to over stress an already fragile crankshaft. The AJS version was the Model 31 and they came in AJS Mediterranean Blue.
PROUD OWNER OF THIS 1963 MATCHLESS G12CS
Special thanks goes out to Mark Grover of Brightwood OR who owns this lovely machine, took these fantastic pictures for us all to enjoy. Great job too. Thank you Mark.

WHERE’S YOUR BIKE?
We invite you to submit pictures and written word on your bike. If it’s something we can use, we’ll build a page around it, just like this. Think of the bragging rights. Hope to see your bike here soon.


1963 Matchless G12CS SPECIFICATIONS

Model Designations, Matchless/AJS
Engine type
Displacement
Bore & Stroke
Compression ratio
Lubrication
Oil capacity
Fuel system
Ignition System
Power output
Battery
Primary drive
Clutch
Gearbox
Final drive
Suspension, front
Suspension, rear
Brakes, front
Brakes, rear
Frame type
Tire, front
Tire, rear
Dry weight
Fuel capacity
Fuel economy
Top speed
G12 / Model 31
Air-cooled OHV vertical twin
646cc / 39.4 ci
72mm X 79.3mm
7.5:1
Dry sump
2.5 L / 5.3 US pints
1 - Amal 389 1-1/8"
Lucas distributor & points
35 hp @ 6,500 rpm
Lucas 6V 12aH
1/2" X 5/16" single chain
Multi-plate, wet
4-speed, right-foot shift
5/8" X 3/8" chain, 96 links
AMC Teledraulic forks
Swing arm w/2 shocks
7 -n SLS drum
7-in SLS drum
Double cradle
3.25" X 19" Dunlop
3.50" X 19" Dunlop
396 lbs / 180 kg
4.5 US gal / 17 L
55 mpg / 23.4 km/L
95 mph

Check out these MATCHLESS BOOKS

MATCHLESS, ONCE THE LARGEST BRITISH MOTORCYCLE MFR


HISTORY OF MATCHLESS MOTORCYCLES, KINDLE


MATCHLESS MAINTENANCE MANUAL 1939-1955 SINGLES


BOOK OF MATCHLESS 350 & 500 SINGLES 1945-1956


BOOK OF MATCHLESS 350 & 500 SINGLES 1955-1966


MOTORCYCLE APPRENTICE: MATCHLESS - IN NAME & REPUTATION


MATCHLESS & AJS RESTORATION, ROY BACON


MATCHLESS: THE COMPLETE STORY


AJS & MATCHLESS GOLD PORTFOLIO 1945-1966


AJS: THE COMPLETE STORY


SERVICE & OVERHAUL MANUAL: AJS & MATCHLESS SINGLES


SERVICE & OVERHAUL MANUAL: AJS & MATCHLESS TWINS


MORGAN 3-WHEELER: THE COMPLETE STORY






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
BSA Motorcycles
.....A65
.....A10
.....A7
.....Gold Star
.....Bantam
.....Rocket 3
Norton Motorcycles
.....Commando
.....Atlas
.....Dominator
.....Manx
Matchless-AJS Motorcycles
.....G3
.....G9
.....G12
.....G80
AMC-Associated Motor Cycles
Royal Enfield Motorcycles
.....Interceptor
.....Bullet
Ariel Motorcycles
.....Square Four
.....Red Hunter
Vincent Motorcycles
.....Black Shadow
.....Comet
Velocette Motorcycles
.....KSS
.....LE
.....MAC
.....Thruxton
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
Classic Motorcycle Photo Gallery
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 Helmets
.....Motorcycle Rain Suits
.....Motorcycle T-Shirts
.....Whitworth Tools
.....GoPro Cameras

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

Back tot top - 1963 Matchless G12CS
Last updated 11/29/16

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