2021 Triumph Bonneville Speedmaster vs 2020 Ducati Diavel 1260 S

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2021 Triumph Bonneville Speedmaster 2021 Triumph Bonneville Speedmaster

Custom / cruiser

Engine
Four stoke, parallel twin, 270° crank angle, SOHC, 4 valve per cylinder
Power
57.5 kW / 76.9 hp @ 6100 rpm
Top Speed
N/A
Weight
263 kg / 580 lbs
2020 Ducati Diavel 1260 S 2020 Ducati Diavel 1260 S

Custom / cruiser

Engine
Four stroke, Testastretta DVT (Desmodromic Variable Timing), 90° L-Twin, 4 Desmodromically actuated valves per cylinder, dual spark
Power
159 hp / 117 kW @ 9500 rpm
Top Speed
N/A
Weight
244 kg / 538 lbs
Full Specifications
General
Year20212020
Make ModelTriumph Bonneville SpeedmasterDucati Diavel 1260 S
Dimensions
Seat Height705 mm / 27.8 in780 mm / 30.7 in
Wheelbase1500 mm / 59.1 in1600 mm / 63.0 in
Height1055 mm /41.5 in-
Length2225 mm / 87.6 in-
Width910 mm / 35.8 in-
Weights & Capacities
Dry Weight-214 kg / 481 lbs
Fuel Capacity12 Litres / 3.2 US gal17 Litres / 4.5 US gal
Wet Weight263 kg / 580 lbs244 kg / 538 lbs
Performance
Max Power57.5 kW / 76.9 hp @ 6100 rpm159 hp / 117 kW @ 9500 rpm
Max Torque106 Nm / 78.2 lb-ft @ 4000 rpm128.9 Nm / 95 lb-ft @ 7500 rpm
Engine
Displacement1198 cc / 73.1 cu in1262 cc / 77 cu-in
Engine DetailFour stoke, parallel twin, 270° crank angle, SOHC, 4 valve per cylinderFour stroke, Testastretta DVT (Desmodromic Variable Timing), 90° L-Twin, 4 Desmodromically actuated valves per cylinder, dual spark
Bore x Stroke97.6 x 80 mm106 x 71.5 mm
Compression Ratio10.0:113.0:1
Cooling SystemLiquid cooledLiquid cooled
EmissionsEURO5Euro4
ExhaustChromed stainless steel 2 into 2 twin-skin exhaust system with chromed stainless silencersStainless steel pipes and single muffler with twin tail pipes, Catalytic converter and 2 lambda probes
Fuel InductionMultipoint sequential electronic fuel injectionElectronic fuel injection system, Øeq 56 mm elliptical throttle bodies with Ride-by-Wire system
IgnitionDigitalElectronic
LubricationWet sump-
Starter-Electric
Drivetrain
ClutchWet, multi-plate, torque assist clutchSlipper and self-servo wet multiplate clutch with hydraulic control
Final DriveChainChain, Front sprocket Z15, Rear sprocket Z43
Gear Ratios-1st 37/15, 2nd 30/17, 3rd 27/20, 4th 24/22, 5th 23/24, 6th 22/25
Primary Drive-Straight cut gears, Ratio 1.84:1
Transmission / Drive6-Speed6-Speed
Chassis
Frame TypeTubular steel, twin cradle frameTubular steel trellis frame
Suspension - Front47 mm Showa cartridge forks48 mm USD Öhlins adjustable fork, TiN treatment
Suspension - RearMono-shock RSU with linkage and preload adjustmentÖhlins fully adjustable monoshock, Aluminium casted single-sided swingarm
Rake25.3°27°
SwingarmTwin sided fabrication-
Trail91.4 mm / 3.6 in120 mm / 4.7 in
Wheel Travel - Front-120 mm / 4.7 in
Wheel Travel - Rear-110 mm / 4.33 in
Electronics
Equipment / Features-Öhlins fully adjustable suspension, Ducati Quick Shift up/down Evo (DQS), Cruise control, Ducati Power Launch Evo (DPL), Hands-Free, Backlit handlebar switches, 3.5″ TFT colour display, Full LED lighting system, Daytime Running | Safety Equipment Riding Modes, Power Modes, Ducati Safety Pack (Cornering ABS Evo, Ducati Traction Control Evo DTC), Ducati Wheelie Control Evo (DWC), Cruise control, Ducati Power Launch Evo (DPL), Hands-Free, Backlit handlebar switches, 3.5″ TFT colour display, Full LED lighting system, Self cancelling turn indicators
Electrical Systems
Instrumentation-3.5 in TFT colour display and dedicated warning light display
Wheels & Brakes
Brakes - Front2 x 310mm disc, Brembo 2-piston sliding axial calipers2 x 320mm semi-floating discs, Radially mounted Brembo monobloc 4-piston M4.32 callipers, PR18/19 radial master cylinder
Brakes - RearSingle 255mm disc, Nissin single piston sliding axial caliperSingle 265mm disc, 2-piston Brembo floating calliper
ABSStandardCornering ABS Evo
Tyres - Front130/90-16120/70 ZR17 Pirelli Diablo Rosso II
Tyres - Rear150/80-16240/45 ZR17 Pirelli Diablo Rosso II
Wheels-Light alloy, casted and machined,
Wheels - FrontWire 32-spoke, 16 x 2.5 in3.50 x 17
Wheels - RearWire 32-spoke, 16 x 3.5 in8.00 x 17

Verdict

Winner on specs

2020 Ducati Diavel 1260 S

The 2020 Ducati Diavel 1260 S edges out the 2021 Triumph Bonneville Speedmaster thanks to its lighter kerb weight, larger fuel tank and larger displacement. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2021 Triumph Bonneville Speedmaster - Advantages

  • Lower seat height: 705 mm vs 780 mm - accessible to a wider range of rider heights.

2020 Ducati Diavel 1260 S - Advantages

  • Lighter: 244 kg vs 263 kg - easier to handle and less fatiguing on long trips.
  • Larger fuel tank: More range between stops - an advantage on touring routes and remote roads.
  • Larger displacement: 1262 cc vs 1198 cc - more cubic capacity means broader torque delivery and greater low-end pull.

2021 Triumph Bonneville Speedmaster vs 2020 Ducati Diavel 1260 S - FAQs

What are the engine differences between the 2021 Triumph Bonneville Speedmaster and 2020 Ducati Diavel 1260 S?
The 2021 Triumph Bonneville Speedmaster uses Four stoke, parallel twin, 270° crank angle, SOHC, 4 valve per cylinder, while the 2020 Ducati Diavel 1260 S is powered by Four stroke, Testastretta DVT.
Which is lighter, the 2021 Triumph Bonneville Speedmaster or the 2020 Ducati Diavel 1260 S?
The 2020 Ducati Diavel 1260 S is lighter at 244 kg compared to 263 kg for the 2021 Triumph Bonneville Speedmaster - a difference of 19 kg. This is a meaningful difference that affects handling and rider fatigue.
Which bike is better for shorter riders, the 2021 Triumph Bonneville Speedmaster or the 2020 Ducati Diavel 1260 S?
The 2021 Triumph Bonneville Speedmaster has the lower seat at 705 mm, making it more accessible. The 2020 Ducati Diavel 1260 S sits higher at 780 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Which has the larger fuel tank, the 2021 Triumph Bonneville Speedmaster or the 2020 Ducati Diavel 1260 S?
The 2020 Ducati Diavel 1260 S has the larger tank at approximately 17 litres vs 12 litres for the 2021 Triumph Bonneville Speedmaster. At 5-6 l/100 km that is roughly 283-340 km vs 200-240 km between stops.
Which should I buy, the 2021 Triumph Bonneville Speedmaster or the 2020 Ducati Diavel 1260 S?
Both are strong choices. The 2021 Triumph Bonneville Speedmaster has the edge in lower seat height, while the 2020 Ducati Diavel 1260 S stands out for lighter kerb weight and larger fuel tank. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.