The Triumph Bonneville T120 motorcycle specifications include a 1,200 cc (73.22 cu in) engine, power of 79 hp (57.7 kW) @ 6,550 rpm, a 5-speed gearbox, and a listed weight of 224 kg (493.8 lb).
Key specifications
2016-2023Model years
1,200 ccDisplacement
79 hpPower
105.0 Nm @ 3,100 rpmTorque
224 kgWet weight
785 mmSeat height
14.5 LFuel tank
1,445 mmWheelbase
Model years covered
20162017201820192020202120222023
Year-specific specification changes
The 2016 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
Compression ratio
2017202310.0:1
Frame
20212023Tubular steel, with twin cradles
Front brakes
2018Double disc. ABS. Nissin 2-piston floating caliper
20212023Single disc. ABS. Brembo 2-piston floating caliper
Front suspension
20172018Kayaba 41mm cartidge forks,
20192020Kyb 41mm cartidge forks,
2021202341mm cartridge forks
Front tire
20172023100/90-18
Fuel system
20222023Injection. Multipoint sequential electronic fuel injection
Gearbox
201720236-speed
Power
2017201980 hp (58.4 kW) @ 6,550 rpm
2020202279.1 hp (57.8 kW) @ 6,550 rpm
Rear suspension
20172018Kayaba twin shocks with adjustable preload,
20192020Kyb twin shocks with adjustable preload,
20212023Twin RSU’s, with pre-load adjustment
Rear tire
2017150/80-17
2018150/80-R17
20192023150/70-R17
Torque
20212023105.0 Nm (10.7 kgf-m or 77.4 ft.lbs) @ 3,500 rpm
Wet weight
20212023235.9 kg (520 lb)
Wheelbase
20181,446 mm (56.9 inches)
201920231,450 mm (57.1 inches)
Clutch
20172021Wet, multi-plate assist clutch
20222023Wet, multi-plate torque assist clutch
Cooling system
20212023Liquid
Fuel capacity
2017201812.87 L (3.40 US gal)
Instruments
20212023Twin dial analogue speedometer and tachometer with LCD multi-functional displays
Overall height
201920231,100 mm (43.3 inches)
Overall width
20192021785 mm (30.9 inches)
20222023780 mm (30.7 inches)
Rake
2017202325.5°
Seat height
20182023790 mm (31.1 inches)
Trail
20172023105 mm (4.1 inches)
Wheels
20212023Aluminium rims, 32 spokes
Additional useful specifications
| Front tire size | 100/90-19 |
|---|---|
| Rear tire size | 130/80-17 |
| Front tire width | 100 mm |
| Front tire aspect ratio | 90% |
| Front rim diameter | 19 in |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 80% |
| Rear rim diameter | 17 in |
| Engine oil capacity | 4.50 L (4.76 US qt) |
| Estimated theoretical fuel range | 322 km |
| Power-to-weight ratio | 0.353 hp/kg |
| Power-to-weight | 352.7 hp/tonne |
| Specific power | 65.8 hp/L |
| Bore/stroke ratio | 1.22:1 (Oversquare) |
Engine specifications
| Engine type | Twin, four-stroke |
|---|---|
| Displacement | 1,200 cc (73.22 cu in) |
| Power | 79 hp (57.7 kW) @ 6,550 rpm |
| Torque | 105.0 Nm (10.7 kgf-m or 77.4 ft.lbs) @ 3,100 rpm |
| Bore × stroke | 97.6 x 80 mm (3.8 x 3.1 inches) |
| Compression ratio | 9.2:1 |
| Valves per cylinder | 4 |
| Cooling system | Air |
| Fuel system | Injection. Multipoint sequential electronic fuel injection with SAI |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | Digital-inductive type via engine management system |
| Starter | Electric |
| Oil capacity | 4.50 L (4.76 US qt) |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Wet. multi-plate |
Chassis and suspension
| Frame | Tubular steel cradle. Twin-sided, tubular steel swing arm. |
|---|---|
| Front suspension | Kayaba 41mm forks |
| Rear suspension | Kayaba chromed spring twin shocks with adjustable preload |
| Front wheel travel | 120 mm (4.7 inches) |
| Rear wheel travel | 120 mm (4.7 inches) |
| Rake | 28.0° |
| Trail | 110 mm (4.3 inches) |
Brakes, wheels and tires
| Front brakes | Single disc. ABS. Nissin 2-piston floating caliper |
|---|---|
| Rear brakes | Single disc. ABS. Nissin 2-piston floating caliper |
| Front tire | 100/90-19 |
| Rear tire | 130/80-17 |
| Wheels | Wire spoked. |
Dimensions and weight
| Wet weight | 224 kg (493.8 lb) |
|---|---|
| Seat height | 785 mm (30.9 inches) |
| Overall length | 2,230 mm (87.8 inches) |
| Overall width | 739 mm (29.1 inches) |
| Overall height | 1,125 mm (44.3 inches) |
| Wheelbase | 1,445 mm (56.9 inches) |
Fuel and emissions
| Fuel capacity | 14.50 L (3.83 US gal) |
|---|---|
| Fuel consumption | 4.50 L/100 km (22.2 km/l or 52.27 mpg) |
| Greenhouse gases | 104.4 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Electrical and instruments
| Instruments | LCD multi-functional instrument pack |
|---|
Other specifications
| Color options | Black, dark red |
|---|---|
| Exhaust system | Chromed 2 into 2 exhaust system with twin chrome silencers |
| Factory warranty | 24 months unlimited milage |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Triumph models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Triumph information before relying on them. Visit the official Triumph website.