Ariel LH 200 Colt - Specifications & Review

LH 200 Colt

Article Complete Info

Articleid461491
CategoryAllround
MakeAriel
ModelLH 200 Colt
Year1959

Chassis, Suspension, Brakes & Wheels

FrametypeSemi double cradle
FrontbrakesExpanding brake (drum brake)
FrontsuspensionTelescopic hydraulic fork
Fronttyre2.75-19
RearbrakesExpanding brake (drum brake)
RearsuspensionPlungers
Reartyre2.75-19
SeatDual seat
WheelsWire spoked

Engine & Transmission

Borexstroke60.0 x 70.0 mm (2.4 x 2.8 inches)
ClutchTwo-plate clutch
Compression7.5:1
CoolingsystemAir
Displacement197.00 ccm (12.02 cubic inches)
EnginedetailsSingle cylinder, four-stroke
Exhaustsystem1-into-1 pipes
Fuelconsumption3.50 litres/100 km (28.6 km/l or 67.21 mpg)
FuelsystemCarburettor. Amal Monobloc carburetter with air cleaner.
Gearbox4-speed
Greenhousegases81.2 CO2 g/km. (CO2 - Carbon dioxide emission)
LubricationsystemDouble gear pump
Power10.00 HP (7.3 kW)) @ 5600 RPM
Topspeed100.0 km/h (62.1 mph)
TransmissiontypefinaldriveChain
Valvespercylinder2

Other Specifications

ColoroptionsDeep claret, Dark red, Red/black
Electrical6 Volt system
Light6 inch headlamp
StarterKick

Physical Measures & Capacities

Dryweight123.0 kg (271.2 pounds)
Fuelcapacity11.00 litres (2.91 gallons)
Overalllength2,030 mm (79.9 inches)
Overallwidth640 mm (25.2 inches)
Powerweightratio0.0813 HP/kg

About Ariel

Country of Origin: United Kingdom
Founder: James Starley & William Hillman (bicycles); later Ariel Motorcycles under Charles Sangster
Best Known For: Square Four tourers, Red Hunter singles, and innovative early designs

Company History

Ariel is among Britain’s most storied names, moving from bicycles to motorcycles in the brass era and innovating through several epochs. The Red Hunter singles set a standard for sporting roadsters, while Edward Turner’s Square Four delivered creamy long-distance power from a compact four-cylinder layout. Postwar Ariels carried commuters and enthusiasts alike, with alloy cylinders and tidy frames that showcased the firm’s engineering finesse. The two-stroke Leader/Arrow of the late 1950s pushed modernity—enclosed bodywork, pressed steel, unit construction—foreshadowing scooters and lightweight commuters. Industry headwinds and consolidation into BSA/Triumph eventually ended motorcycle production in the late 1960s. In the 21st century, the Ariel name returned on radical lightweight cars and a boutique V-4 motorcycle prototype, channeling the brand’s historic appetite for bold design. Historically, Ariel symbolizes British ingenuity: elegant solutions to packaging and power delivery, a willingness to try new materials and layouts, and an understanding that motorcycles could be both fast and refined. A well-sorted Square Four remains a bucket-list ride—silky midrange, dignified pace, and the sense of traveling with civilized authority.

Other Years

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