The Triumph Bonneville 750 T140 Silver Jubilee was produced in 1977 with only 1000 units made. It has a parallel twin, four-stroke engine with two valves per cylinder and a capacity of 744cc. The compression ratio is 7.9:1 and it has 2 x 30mm Amal carburetors for induction. The kick-started engine produces 40.3 kW / 54 hp @ 5000 rpm. The motorcycle has a wet, multiplate clutch and a five-speed transmission with a chain, 106-link final drive. The frame is made of tubular steel with a double front downtube and an oil-bearing large tube backbone. The front suspension is telescopic forks and the rear is a swingarm with Girling shocks that are 3-way spring preload adjustable. It has a single-piston caliper 254mm disc brakes on the front and rear with Dunlop Red Arrow tires, 4.10-19 K91 ribbed on the front and 4.10-18 K91 on the rear. The wheelbase is 1422mm / 56 inches and it weighs 177kg / 390 lbs. The fuel capacity is 12 liters / 3.2 US gal / 2.6 Imp gal with oil capacity at 2.3 L / 4.8 US pt / 4.0 Imp pt. It has a seat height of 813mm / 32 inches and its dimensions are 2220mm in length and 840mm in width.
Technical specifications:
Make Model: Triumph Bonneville 750 T140V Silver Jubilee
| Year | 1977 |
|---|---|
| Production | 1000 Units |
| Engine | Four stroke, parallel twin, OHV, 2 valves per cylinder |
| Capacity | 744 cc / 45.4 cu in |
| Bore x Stroke | 76 x 82 mm |
| Compression Ratio | 7.9:1 |
| Cooling System | Air cooled |
| Induction | 2 x 30 mm Amal carburetors |
| Ignition | Battery / dual coil / dual points / Lucas |
| Starting | Kick |
| Max Power | 40.3 kW / 54 hp @ 5000 rpm |
| Clutch | Wet, multiplate |
| Transmission | 5 Speed |
| Final Drive | Chain, 106 links |
| Gear Ratios | 1st 12.25 / 2nd 8.63 / 3rd 6.58 / 4th 5.59 / 5th 4.70:1 |
| 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 |
| Front Tyre | 4.10-19 K91 ribbed, Dunlop Red Arrow |
| Rear Tyre | 4.10-18 K91, Dunlop Red Arrow |
| Rake | 28o |
| Trail | 109 mm / 4.3 in |
| Wheelbase | 1422 mm / 56 in |
| Dimensions | Length: 2220 mm / 87.5 in Width: 840 mm / 33.0 in |
| Seat Height | 813 mm / 32.0 in |
| Dry Weight | 177 kg / 390 lbs |
| Oil Capacity | 2.3 L / 4.8 US pt / 4.0 Imp pt |
| Fuel Capacity | 12 Litres / 3.2 US gal / 2.6 Imp gal |
