1947 Triumph 3T Deluxe

1947 TRIUMPH 3T DELUXE BACKGROUND
Triumph production reverted to civilian machines in 1946, following the end of World War II. The biggest market that the British motorcycle industry needed to fill was the pressing need for cheap, economical transport to-and-from-work. In response, Triumph announced the new 3T, a 350cc companion to Edward Turner's 500cc 5T Speed Twin. The 3T was similar in many respects to the Speed Twin, but also borrowed features from the TRW and 3TW military motorcycles it built for the Queen during the War. Basic engine design followed the 5T, but featured rocker boxes incorporated into its iron cylinder-head casting and a built-up (pressed-together) crankshaft with one-piece connecting rods. The punchy, vertical twin developed 19 horsepower and was capable of 74mph at the top end. Ridden normally, the 3T returned fuel economy approaching 80mpg and was warmly received by economy-minded buyers. The engine possessed a measure of the low-down 'grunt' associated with Triumph's larger twins and as a result was a pleasant, charismatic machine to ride. In production from 1946 through 1951 and never built in huge numbers, a 3T is a rare sight today, especially in the U.S. This 1947 Triumph 3T Deluxe was sold in auction in Las Vegas in 2017 for $10,000.

1947 Triumph 3T Deluxe SPECIFICATIONS

Engine type
Displacement
Bore & Stroke
Compression Ratio
Engine output
Primary drive
Clutch
Gearbox
Final drive
Frame type
Suspension, front
Suspension, rear
Brake, front
Brake, rear
Tire size, front
Tire size, rear
Wheelbase
Overall length
Overall width
Seat height
Dry weight
Fuel capacity
Oil capacity
OHV parallel twin
349cc / 21.3 ci
2.17" X 2.89" / 55mm X 73.4mm
7.0:1
19 bhp
Chain
Multi-plate, wet
4-speed, right-foot shift
Chain
Steel tube, brazed lugs
Telescopic, hydraulically-dampened
Rigid w/sprung rear hub
SLS drum
SLS drum
3.25" X 19"
3.25" X 19"
53.3" / 1353mm
82.5" / 2096mm
28.5" / 724mm
28.5" / 724mm
335 lbs / 152 kg
3.75 US gal / 3.1 Imp gal / 14.2L
7.17 US pts / 5.98 UK pts / 3.4L

Check out these TRIUMPH BOOKS




2018 Classic Triumph Calendar


Triumph Motorcycles: The art of the motorcycle


The Complete Book of Classic and Modern Triumph Motorcycles 1937-Today (Complete Book Series)


Triumph Motorcycles: From Speed-Twin to Bonneville


Triumph Bonneville and TR6 Motorcycle Restoration Guide: 1956-83


British Motorcycles Triumph (Little Books)


Triumph Motorcycles in America


McQueen's Motorcycles: Racing and Riding with the King of Cool


Triumph Motorcycle Restoration


Illustrated Triumph Motorcycles Buyer's Guide: From 1945 Through the Latest Models (Illustrated Buyer's Guide)


Tales of Triumph Motorcycles and the Meriden Factory


Hinckley Triumphs: The First Generation (Crowood Motoclassic)

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Back to top - 1947 Triumph 3T Deluxe
Last updated 11/24/17

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