Norton 850 Commando Motorcycle 1973

Norton 850 Commando

The Commando grew to 850cc in 1973, when the engine was uprated with stronger crankcases and the bore increased to 77mm. In a milder state of tune than the Commando 750, with compression now at 8.5 to 1, its easy cruising manner and low-speed pulling power won it many friends as an appealing alternative to the high-revving Japanese machines.

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Norton 750 Commando "Fastback" Motorcycle 1969

750 Commando "Fastback"

The Commando, in 750 and later in 850 form, was the final development of the archetypal British vertical twin. Essentially, it was yet another update of Bert Hopwood's 1948 design, in an attempt to rescue the famous Norton name from disaster. The Fastback model was the raciest of the Commando line, introduced in 1969.

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Yamaha XS-1 Motorcycle 1969, 1970, 1971, 1972

Yamaha XS-1

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Produced: 1969-72

No. Cylinders: 2

Bore x Stroke: 75 x 74mm

Capacity: 653cc

Comp ratio: 8.7:1

Power Output: 53bhp

Gearbox: 5-speed

Suspension: Front teles

Rear s/a

Brakes: Front 192 drum

Rear 180 drum

Tyres: Front 3.50 x 19in

Rear 4.00 x 18in

Wheelbase: 1,410mm (55.5in)

Weight: 199kg (439lb)

Top Speed: (approx) 105mph (169kph)

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