1974 Norton Commando 850 Interstate. Image credits - lance white.
General information
Motorcycle name
Norton Commando 850 Interstate
Year model
1974
Type
Sport touring
Rating
3.5 See the detailed rating of touring capabilities, reliability, accident risk, etc. Compare with any other motorbike.
Engine and transmission
Engine size
828.0 ccm (50.52 cubic inches)
Type of engine
Twin, four-stroke
Effect
51.0 HP (37.2 kW )) @ 6250 RPM
Top speed
191.0 km/h (118.7 mph)
Compression
8.5:1
Bore x stroke
77.0 x 89.0 mm (3.0 x 3.5 inches)
Valves per cylinder
2
Fuel system
Carburettor. 2 x 30mm Amal concentric
Fuel control
Overhead Valves (OHV)
Ignition
12V, alternator
Cooling system
Air
Gearbox
4-speed
Transmission type
Chain (final drive)
Chassis, suspension, brakes and wheels
Front suspension
Telescopic forks
Rear suspension
Dual shocks, 5-way adjustable
Front brakes
Single disc
Rear brakes
Expanding brake
Diameter
178 mm (7.0 inches)
Physical measures and capacities
Dry weight
203.0 kg (447.5 pounds)
Weight incl. oil, gas, etc
220.0 kg (485.0 pounds)
Power/weight ratio
0.2512 HP/kg
Seat height
780 mm (30.7 inches) If adjustable, lowest setting.
Fuel capacity
11.00 litres (2.91 US gallons)
Oil capacity
2.80 litres (2.96 US quarts)
Other specifications
Starter
Electric & kick
Update specs Report missing specs or required updates .
Maintenance and service specs *
Engine oil
20W-50
Brake fluid
DOT 4
Spark plugs
NGK BP7ES, NGK BPR7EIX
Chain links
99
Sprockets
26/57 (front/rear)
Tire pressure front
25 PSI (1.7 Bar or 170 kPa)
Tire pressure rear
26 PSI (1.8 Bar or 180 kPa)
*) Always verify maintenance and service data with the bike owner's manual.
Further information
Insurance costs Compare US insurance quotes from the nation's top providers. Maintenance Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. Ask questions Join the 74 Norton Commando 850 Interstate discussion group or the general Norton discussion group. Related bikes List related bikes for comparison of specs.
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