Matchless G11 (1955)

The Matchless G11 is a vintage motorcycle from 1955 featuring a parallel twin-cylinder engine with a capacity of 593cc, air-cooled with a 7.5:1 compression ratio and dry sump lubrication. The bike has a 4-speed transmission with a chain final drive and a single top and down pipe double cradle frame. The wheels are steel with wire spokes and the front and rear brakes are drum brakes. The front suspension is teledraulic while the rear suspension is swingarm with twin shocks and coil springs, oil damped. The fuel system is an Amal 376/78 and ignition is provided by a Magneto, Lucas K2F. Starting is done via kickstart and the battery is a 6V 12 Ah Lucas. The oil capacity is 2.5 L and the fuel capacity is 17 L. The bike weighs 400 lbs and is available in black or red. Maximum power of the bike is 24.3 kW / 33 hp at 6800 rpm. Overall, it is a well-crafted motorcycle built in the 1950s, with engineering prowess that can provide great ridership experiences.

Technical specifications:

Make Model: Matchless G11

Year: 1955
Engine: Parallel twin cylinder
Capacity: 593 cc / 36.2 cub in.
Bore x Stroke: 72 x 72.8 mm
Cooling System: Air cooled
Compression Ratio: 7.5:1
Lubrication: Dry sump
Engine Oil: Hot: SAE 50 Cold: SAE 30 Extremely Cold: SAE 20
Oil Capacity: 2.5 L / 5.3 US pints
Exhaust: Twin, chrome
Fuel System: Amal 376/78
Ignition: Magneto, Lucas K2F
Starting: Kick
Battery: Lucas, 6V 12 Ah
Spark Plug: KLG FE80, 14mm thread
Maximum Power: 24.3 kW / 33 hp @ 6800 rpm
Transmission: 4-Speed
Final Drive: Chain
Gear Ratios: 1st 2.67 / 2nd 1.77 / 3rd 1.35 / 4th 1.0:1
Frame: Single top and down pipe, double cradle
Wheelbase: 1403 mm / 55.25 in.
Front Suspension: Teledraulic
Rear Suspension: Swingarm, twin shocks and coil springs, oil damped
Front Brakes: Drum
Rear Brakes: Drum
Wheels: Steel, wire spokes
Front Tyre: 3.25 x 19 in.
Rear Tyre: 3.50 x 19 in.
Dry Weight: 181 kg / 400 lbs
Fuel Capacity: 17 L / 4.5 US gal
Colours: Black, Red
Source: Real Classic.co.uk