1973 Norton 750 Monocoque

With Phil Aynsley


The 1973 750 Monocoque was the first design that replaced the Commando framed bikes that Norton had been using up until that point in time.

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1973 Norton 750 Monocoque

Norton engineer and rider Peter Williams won the 1973 IOM Formula 750 race on this bike. It was Williams who conceived and designed the Monocoque with the goal of reducing the frontal area, and lowering the centre of gravity by carrying the oil and fuel as low as possible.

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1973 Norton 750 Monocoque

This was reminiscent of the Norton 350 Low Boy prototype of 1960, with both designs aiming to make the most of the limited engine output available (compared to the opposition).

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1973 Norton 750 Monocoque

The current owner bought the bike directly from Williams after it had been rebuilt (years later), following his crash at Imola two weeks after the IOM.

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1973 Norton 750 Monocoque

The dent in the left hand side of the monocoque can still be seen! Only three bikes were constructed (plus a prototype chassis), all in 1973.

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1973 Norton 750 Monocoque

The bike recorded a top speed of 257 km/h at Daytona in ’73 before Williams won the Anglo-American Match series a few months later, then the IOM. Output was 76 hp at 7,200rpm while the bike has a dry weight of 150 kg.

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1973 Norton 750 Monocoque

For 1974 the Monocoque was replaced by the 750 Space Frame.

PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque
PA NortonMono
1973 Norton 750 Monocoque