1977
Triumph T140 V Bonneville SIlver Jubilee - Specifications & Review
Article Complete Info
| Articleid | 595987 |
|---|---|
| Category | Classic |
| Make | Triumph |
| Model | T140 V Bonneville SIlver Jubilee |
| Year | 1977 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Twin Downtube Cradle. Oil in frame. |
|---|---|
| Frontbrakes | Single disc. Twin piston caliper, Hard chromed cast iron disk |
| Frontbrakesdiameter | 254 mm (10.0 inches) |
| Frontsuspension | Telescopic slider type |
| Fronttyre | -19 |
| Frontwheeltravel | 170 mm (6.7 inches) |
| Rake | 27.0° |
| Rearbrakes | Single disc. Twin piston caliper, Hard chromed cast iron disk |
| Rearbrakesdiameter | 254 mm (10.0 inches) |
| Rearsuspension | Twin Girling Shocks on Swinging Arm |
| Reartyre | -18 |
| Rearwheeltravel | 89 mm (3.5 inches) |
| Trail | 113 mm (4.4 inches) |
Engine & Transmission
| Borexstroke | 76.0 x 82.0 mm (3.0 x 3.2 inches) |
|---|---|
| Clutch | Wet multi-plate |
| Compression | 7.9:1 |
| Coolingsystem | Air |
| Displacement | 750.00 ccm (45.77 cubic inches) |
| Enginedetails | Twin, four-stroke |
| Exhaustsystem | Twin downswept with balance pipe, Dual silencers. |
| Fuelconsumption | 4.70 litres/100 km (21.3 km/l or 50.05 mpg) |
| Fuelsystem | Carburettor. Twin 30mm Amal Concentric |
| Gearbox | 5-speed |
| Greenhousegases | 109.0 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Ignition | Twin Coil and Points |
| Lubricationsystem | Dry sump |
| Maxrpm | 7200 |
| Onequartermile | 13.700 seconds |
| Power | 45.00 HP (32.8 kW)) |
| Topspeed | 177.0 km/h (110.0 mph) |
| Transmissiontypefinaldrive | Chain |
| Valvespercylinder | 2 |
Other Specifications
| Coloroptions | Silver With Red and Blue pinstriping. |
|---|---|
| Comments | I believe there was a USA and a Eureopean variant of this bike. The difference being: USA 2.8 gallon tank and high handlebars. Eureopean version had 4gall tank and low bars. |
| Modificationscomparedtopreviousmodel | Differed froom standard Bonneville of the day in that it was a certified limited edition with custom paintwork and decals. Red and Blue pinstripes on both rims, tank and side covers and Chromed Engine Covers. |
| Starter | Kick |
Physical Measures & Capacities
| Dryweight | 179.2 kg (395.0 pounds) |
|---|---|
| Fuelcapacity | 10.59 litres (2.80 gallons) |
| Oilcapacity | 2.20 litres (0.15 quarts) |
| Overalllength | 2,223 mm (87.5 inches) |
| Overallwidth | 838 mm (33.0 inches) |
| Powerweightratio | 0.2512 HP/kg |
| Seatheight | 787 mm (31.0 inches) If adjustable, lowest setting. |
| Weightincloilgasetc | 190.5 kg (420.0 pounds) |
About Triumph
Country of Origin:
United Kingdom
Founder:
Siegfried Bettmann (original); modern Triumph Motorcycles Ltd.
Best Known For:
Modern classics (Bonneville), Speed/Street Triple, Tiger ADV, and rich heritage
Company History
Triumph rose, fell, and rose again—reinvented as a modern manufacturer blending heritage with sharp engineering. The Bonneville family anchors the brand with air-/liquid-cooled twins that feel timeless yet include ABS, ride modes, and refined fueling. The Speed/Street Triple lines defined playful, usable performance with characterful triples; Tiger ADV models carried that feel into distance. Triumph’s attention to finishing, dealer support, and approachable ergonomics built a wide audience—from new riders to veterans returning for a bike that feels special daily. Historically, Triumph proves that heritage can power innovation when it informs proportions, sound, and feel rather than dictating technology.