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Triumph TR5T Trophy 500

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Make Model

Triumph TR5T Trophy

Year

1959 -

Engine

Vertical twin, OHV

Capacity

490 cc / 29.9 cu-in
Bore x Stroke 69 x 65.5 mm
Compression Ratio 9.0:1
Cooling System Air cooled

Induction

Single 26 mm Amal concentric carburetor

Ignition

Coils and points, alternator

Starting

Kick

Max Power

27.9 kW / 38 hp @ 7000 rpm

Transmission

4-Speed

Final Drive

Chain

Front Suspension

Telescopic forks, Slimline

Rear Suspension

Swingarm, Girling shock absorbers

Front Brakes

Drum

Rear Brakes

Drum

Front Tyre

3.25 x 19

Rear Tyre

4.00 x 18

Rake

27°

Wheelbase

1359 mm / 53.5 in

Ground Clearance

228.6 mm / 9 in

Seat Height

813 mm / 32 in

Wet Weight

161 kg / 355 lbs

Fuel Capacity 

8.5 Litres / 2.25 US gal
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Based on the Speed Twin, the TR5 was a trials machine designed for off-road use with a high level two into one exhaust and good handling on public roads. The name 'Trophy' came from the three 'specials' that Triumph built for the Italian International Six Day Trial in 1948, which went on to win three gold medals and the manufacturers team trophy. Racing in American Motorcyclist Association (AMA) Class C until 1969, the American export models included components from the Tiger 100 to create a motorcycle for desert competition.

The original TR5 Trophy models of 1949 used the aluminum cylinder barrels and heads from a generator motor Triumph had supplied for the War Department in WW2. This was Triumph's first aluminum cylinder head/barrel, and factory employees speculated during the War that the alloy heads, with their superior cooling properties, could easily be adapted for a motorcycle. The TR5 Trophy models from 1949-50 used modified versions of these cylinder heads, nicknamed the 'square barrel'. From 1951 the 498 cc (30.4 cu in) engine was updated with new alloy barrels and heads with finer-pitch finning and a rounded profile, which was shared with the Tiger 100 model. The TR5 was replaced with a new range of unit construction twins in 1959. Triumph TR5T Trophy Trail built for 1973 and 1974. Also known as the Adventurer.