Ural M66: history, specs, pictures

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1975 Ural M66 650cc.jpg
Ural M66
Manufacturer
Also called M66 (with sidecar), M 66 (with sidecar), M 66
Production 1973 - 1975
Engine
two cylinder boxer, four-stroke
Bore / Stroke 78.0mm x 68.0mm
Top Speed 78 mph (125 km/h)
Horsepower 31.38 HP (23.4 KW) @ 4500RPM
Transmission Gear box: 4-speed
Final Drive: shaft drive (cardan)
Brakes Front: expanding brake
Rear: expanding brake
Front Tire 3.75-19
Rear Tire 3.75-19
Weight 215.0 kg (wet)
Fuel Capacity 5.55 Gallon (21.00 Liters)
Manuals Service Manual


The Ural M66 was a two cylinder boxer, four-stroke standard produced by Ural between 1973 and 1975. It could reach a top speed of 78 mph (125 km/h). Claimed horsepower was 31.38 HP (23.4 KW) @ 4500 RPM.

Engine[edit | edit source]

The engine was a air cooled two cylinder boxer, four-stroke. A 78.0mm bore x 68.0mm stroke result in a displacement of just 650.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

Drive[edit | edit source]

The bike has a 4-speed transmission.

Chassis[edit | edit source]

It came with a 3.75-19 front tire and a 3.75-19 rear tire. Stopping was achieved via expanding brake in the front and a expanding brake in the rear. The M66 was fitted with a 5.55 Gallon (21.00 Liters) fuel tank.