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Triumph Roadster TRX

(1950 model)

Brief specs of 1950 Triumph Roadster TRX

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OHV (overhead valve, I-head), 2088 cm3 / 127.4 cu in / 127.4 cu in, 52.9 kW / 70.9 hp / 70.9 hp @ 4200 rpm / 4200 rpm / 4200 rpm, manual 4-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)TriumphIssued from1950
ModelRoadster TRXIssued until
SerieRoadsterNumber made
Model familyBody construction
Model codeBody designation
ManufacturerTriumphCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typedrophead coupé (convertible coupé)Number of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4216 mm / 166.0 in / 166.0 inTotal (curb) weight1163 kg / 2564 lb / 2564 lb
Width1778 mm / 70.0 in / 70.0 inDry weight
Height1397 mm / 55.0 in / 55.0 inLoad capacity
Wheelbase2388 mm / 94.0 in / 94.0 inGross (max.) weight
Track front1486 mm / 58.5 in / 58.5 inTowing weight
Track rear1372 mm / 54.0 in / 54.0 inWeight distribution (front)
Ground clearance191 mm / 7.5 in / 7.5 inFuel capacity55 l / 12.0 UK gal / 14.4 US gal
Length/wheelbase ratio1.77  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.11 m2 / 22.7 sq ft / 22.7 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders4
Engine Typestraight (inline) Total number of valves8
Engine ManufacturerTriumphValves per cylinder2
Engine constructionBore85.0 mm / 3.35 in / 3.35 in
Fuelpetrol (gasoline)Stroke92.0 mm / 3.62 in / 3.62 in
Fuel detailsBore/Stroke ratio0.92
Fuel supply2 SU carbsEngine displacement2088 cm3 / 127.4 cu in / 127.4 cu in
Engine Main bearingsUnitary capacity522.00 cm3/cylinder / 31.854 cu in/cylinder / 31.854 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio7.0 : 1
SumpMax. output power52.9 kW / 70.9 hp / 70.9 hp at 4200 rpm / 4200 rpm / 4200 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)21.2 kW / 28.4 hp / 28.4 hp (est.)
CoolantwaterSpecific output25.3 kW/l / 0.557 bhp/cu in / 0.557 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.58

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio61.0 kW/ton / 46.3 bhp/ton / 46.3 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringcam & rollerSteering details
Turns lock-to-lockTurning circle10.7 m / 35.1 ft / 35.1 ft
Suspension frontIndependent, Wishbone (A-arm, control arm), Coil springsSuspension rearLive axle, Semi-elliptic leaf springs, Anti-roll (anti-sway) bar (ARB)
Wheels frontWheels rear
Tyres front5.50 x 16Tyres rear5.50 x 16
Brakes frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Triumph Roadster TRX

Infobox

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