Technical Specifications for the
Nine Roadster

Four cylinder, 60 mm. by 95 mm. = 1,074 c.c.Treasury rating, 8.93 h.p.Overhead valves with overhead camshaftThree bearing counterbalanced crankshaftSteel connecting rodsSubmerged pump oil feed with internal and external bypass filtersAluminum alloy pistons12 volt coil ignition with automatic advanceSingle S.U. downdraft carburatorThermosyphon water circulation

Gearbox and TransmissionDry single-plate clutch with cushioned centreThree speed gear box with ratios 5.43, 9.9 and 18.08 to 1Synchromesh on second and third gearsNeedle-bearing open propeller shaftSpiral bevel final drive in pressed steel rear axle caseSemi-floating shafts

Wheels and Brakes16 inch pressed steel easy-clean wheels5.00 X 16 inch tiresGirling mechanical

SteeringBurman worm and nut

SuspensionHalf elliptic springs front and rearArmstrong double-acting hydraulic shock absorbers

Main DimensionsWheelbase 7 ft. 7 ins.Track 3ft 9 inOverall length 12 ft 5 3/4 inWidth 4 ft 7 3/4 inHeight 4 ft 8 inTurning circle 34 ftGround clearance 6 inWeight 15 1/2 cwt

£169 (pre-war)£335 plus £93 purchase tax (post-war)