Triumph T140 750 TSX

Triumph T140 750 TSX
Manufacturer	Triumph
Production	371 Units (for both 1982 and 1983)
Engine	Four stroke, parallel twin, four valves per cylinder.
Compression ratio	9.5:1
Top Speed	161 km/h / 100 mph
Transmission	5 Speed constant mesh
Suspension	Front: Telescopic forks Rear: Swinging arm with Marzocchi shocks
Brakes	Front: 2 x 254 mm Lockheed discs Rear: Single 254 mm Lockheed disc
Front Tire	100-19
Rear Tire	100-16
Wheelbase	1403 mm / 55.2 in
Seat Height	775 mm / 30.5 in
Weight	191 kg / 421 lbs (dry),
Fuel Capacity	18.2 L / 4 US gal / 3.3 Imp gal
Manuals	Service Manual

It could reach a top speed of 161 km/h / 100 mph.

Engine

The engine was a Air cooled cooled Four stroke, parallel twin, four valves per cylinder.. The engine featured a 9.5:1 compression ratio.

Drive

Power was moderated via the Wet, multiplate.

Chassis

It came with a 100-19 front tire and a 100-16 rear tire. Stopping was achieved via 2 x 254 mm Lockheed discs in the front and a Single 254 mm Lockheed disc in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Swinging arm with Marzocchi shocks. The T140 750 TSX was fitted with a 18.2 L / 4 US gal / 3.3 Imp gal fuel tank. The bike weighed just 191 kg / 421 lbs. The wheelbase was 1403 mm / 55.2 in long.

Photos

Overview

Triumph TSX 750

By 1983, Triumph was once again struggling to survive. Public opinion was being led by the nose by openly hostile media who remained vitriolic about the radical decline of the motorcycle sector that had once buoyed the British economy and the British sense of national pride. Worse still, it was Japanese and German companies who had, in many ways, out-competed the British both on the racetrack and on the saleroom floor. However, the truth was that the Meriden factory was still populated with dedicated men and women who were producing high-quality machines. Admittedly, upper management had, by this stage, completely lost the plot and was desperately looking for an escape. It came in the form of a property developer who had no personal interest in motorcycles but, rather, liked the site on which the famous Meriden factory was located. In the midst of all this, the factory workers produced 371 TSX 750s: 100 for the US, 200 for the UK and 71 for the rest of the world. Approximately one-third of that total number of bikes were finished in the black which makes this mint example a very exceptional machine indeed. Essentially a restyled Triumph Bonneville, the TSX was distinguished by its lowered chassis and 16-inch-diameter rear wheel, with the engine offset in the frame to accommodate this. Other changes unique to the model included a stepped seat, black-coated engine casings and engine with polished fins, restyled passenger grab rail, shortened front and rear painted mudguards (the latter having a black plastic mount for the vehicle number plate), mirror-polished alloy, short megaphone mufflers, Morris alloy wheels (then made by Performance Machine) and ‘retro’ graphics. Paioli rear suspension units, with plastic top shrouds, were sited at a more acute angle further back on the swinging arm to lower the seat height. A Brembo rear brake was fitted in place of the usual Automotive Products (AP) Lockheed item, which remained at the front. All in all, it was a well-supplied piece of kit for the day and one that now captures a unique and defiant period of Triumph history.

Make Model	Triumph TSX 750
Year	1982
Production	371 Units (for both 1982 and 1983)
Engine Type	Four stroke, parallel twin, four valves per cylinder.
Displacement	748 cc / 45.6 cu in
Bore X Stroke	76 x 82 mm
Compression	9.5:1
Cooling System	Air cooled
Induction	2 x 34 mm Amal carburetors
Starting	Electric
Max Power	43.3 kW / 58 hp @ 6500 rpm
Clutch	Wet, multiplate
Transmission	5 Speed constant mesh
Final Drive	Chain
Front Suspension	Telescopic forks
Rear Suspension	Swinging arm with Marzocchi shocks
Front Brakes	2 x 254 mm Lockheed discs
Rear Brakes	Single 254 mm Lockheed disc
Front Tire	100-19
Rear Tire	100-16
Wheelbase	1403 mm / 55.2 in
Seat Height	775 mm / 30.5 in
Dry Weight	191 kg / 421 lbs
Fuel Capacity	18.2 L / 4 US gal / 3.3 Imp gal
Consumption Average	5.2 L/100 km / 19.3 km/l / 45.5 US mpg / 54.6 Imp mpg
Top Speed	161 km/h / 100 mph