1973 Norton Commando 850 Restomod Packs Electronic Ignition, Larger Displacement

While scrolling down the list of live auctions on Bring A Trailer, we stumbled upon a 1973 Norton Commando 850 restomod that could be yours at no reserve!

In stock form, the British relic comes equipped with a four-stroke 828cc parallel-twin powerplant, which packs dual Amal carburetors, four valves, and a compression ratio of 8.5:1. When the crank spins at around 6,200 rpm, the air-cooled engine will go about producing a maximum power output figure of 60 ponies. A four-speed constant-mesh transmission channels the oomph to the rear wheel via a chain final drive.

However, the bike we’re looking at here isn’t exactly a standard Commando. For starters, the twin-cylinder mill was blessed with an extensive makeover that boosted its displacement to 861cc. During the refurbishment, the Amal carbs were discarded in favor of a single Mikuni item, while the main bearings and piston rings were replaced with fresh alternatives.

The powertrain modifications were concluded with the addition of a new exhaust system and an electronic ignition setup from Boyer Bransden. Furthermore, the machine’s corroded fuel tank and side panels have been laid to rest, making way for aftermarket replicas that keep things looking pristine. Last but not least, the 19-inch hoops were fitted with grippy Dunlop tires under current ownership.

Many details of the restoration remain unclear for the time being, but we’d say this ‘73 MY gem is definitely worth your attention. The BaT auction will only be open until tomorrow evening (Friday, September 17), and you’d need a little over five grand to surpass the top bid. If I were you, I’d totally check this sexy thing out before the bidding deadline is reached.