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Norton · 1973–1975

1973 Norton Commando 850 Interstate

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1973 Norton Commando 850 Interstate
Auction record
Average sale
$10,000
Sales
3
Low
$7,750
High
$11,250

Specifications

Category
Sport touring
Displacement
828.0 ccm (50.52 cubic inches)
Power
51.0 HP (37.2 kW) @ 6250 RPM
Top speed
191.0 km/h (118.7 mph)

The 1973 Norton Commando 850 Interstate

1973 Norton Commando 850 Interstate sits at the top of the Commando range as the long-legged, high-mileage version of Norton's parallel-twin roadster. This is a bike built for covering ground rather than posing at the local hangout, with the bigger fuel tank and softer overall tune aimed at riders who wanted comfort on long hauls without giving up the twin's raw character. The isolastic frame mounting takes the edge off the vibration you'd expect from a big British twin at speed, and the engine pulls with the kind of low-end shove that makes overtaking effortless rather than a chore. It rewards riders who like working a machine with some mechanical honesty rather than one that hides everything behind electronics.

The 1973 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1972 example should focus on mileage, service history, and condition rather than spec differences. Because this was the first year of the larger 850cc engine, though, it holds a meaningful place in the Commando's development.

Owners tend to be experienced riders and collectors who already understand classic British bike quirks, often stepping down from modern sport tourers in search of something more involving. Given the moderate-to-high collector interest, well-documented examples of the 1973 Norton Commando 850 Interstate are worth pursuing carefully.

Auction history

DateListingPriceMileageSource
May 1, 20261973 Norton Commando 850 Interstate$7,750Bring a Trailer
Jan 16, 20241973 Norton Commando 850 Interstate$11,250Bring a Trailer
Nov 24, 20231973 Norton Commando 850 Interstate Cafe Racer$11,000Bring a Trailer

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