| MODEL | TRIUMPH T 140V BONNEVILLE 1975 - 1977 |
| Year | 1975 - 1977 |
| Engine Type | Four-stroke, parallel twin, OHV, 2 valves per cylinder |
| Displacement / Capacity | 744 cc / 45.4 cu in |
| Bore X Stroke | 76 x 82 mm |
| Compression Ratio | 7.9:1 |
| Cooling System | Air cooled |
| Max Power | 40.3 kW / 54 hp @ 5000 rpm |
| Max Torque | — |
| Ignition | Battery / dual coil / dual points / Lucas |
| Induction | 2 x 30 mm Amal carburetors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Wet, multiplate |
| Final Drive | Chain, 106 links |
| CHASSIS SPECS | |
| Frame | Tubular steel, double front downtubes, oil bearing large tube backbone |
| Front Suspension | Telescopic forks |
| Rear Suspension | Swingarm, Girling shocks, 3-way spring preload adjustable |
| Front Brakes | Single 254 mm disc, 1 piston caliper |
| Rear Brakes | Single 254 mm disc, 1 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2220 mm / 87.5 in |
| Overall Width | 840 mm / 33.0 in |
| Overall Height | — |
| Seat Height | 820 mm / 32.3 in |
| Wheelbase | 1448 mm / 57 in |
| Ground Clearance | — |
| Dry Weight | 198 kg / 414 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25-19 |
| Rear Tyre | 4.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 12 Litres / 3.2 US gal / 2.6 Imp gal |
| Fuel Consumption | — |
| Top Speed | — |
In 1975 the T140V moved the gear lever to the left side and gained a rear disc brake. Mechanically it stayed the 744 cc air-cooled twin with five speeds. It remained a simple, characterful machine in the face of fast-moving Japanese competition.
