The Crossley 20-70 was manufactured between 1922 and 1926. Total production is estimated at 50 to 100. The chassis numbers were part of the 19.6 series. Known examples are 16430 and 17506.
The engine was a tuned version of that fitted to the 19.6 featuring higher compression ratio, revised camshaft timing, a polished and balanced crankshaft and lightweight pistons.
Top - Type B Body with V-windscreen
Bottom - Type C body
(The Type A was similar to the Type B but with hood fitted to the car as in the Type C rather than of the detachable type.)
£875 (1923) £900 (1924) £860 (1925)
Four seat V-windscreen saloon
Information on the saloon version of the 20/70 is scarce and it is not certain if it retained the external handbrake seen on the other body types.
"Speedforte" 2/4 seater
Described as a two-seater that could be made into a four-seater by removing the rear deck. A rear windscreen would fold up. It was displayed at the 1924 Olympia show.
(Note - although the car shown fits the description it is not certain that it is a "Speedforte")
The above are all Crossley factory bodies. The car could also be supplied in chassis form to independent coach builders. (chassis £675 in 1923)
The prices quoted are from contemporary advertisements.
"tulip shaped" valves
14.5 gallon (66 litre) petrol tank
ratios - 1:1, 1.56:1, 2.40:1, 3.8:1
27¼ cwt ( 1384 kg) (4 seat tourer)
hand brake operates on rear wheels
foot brake operates on transmission
Four-wheel brakes optional (from October 1923) -
foot brake operates on all four wheels using Perrot system.
hand brake operates on transmission
Rudge Whitworth splined (later)
820mm x 120mm