Triumph Bonneville Speedmaster - 2021 Specifications and Reviews

The 2021 Triumph Bonneville Speedmaster is a 1200cc classic cruiser designed for riders seeking laid-back, retro-styled riding with modern reliability. Its 77 horsepower air-cooled twin engine delivers commanding low-end torque ideal for relaxed highway cruising and city riding. Known for authentic British styling combined with contemporary technology, it appeals to enthusiasts valuing character and timeless design over raw performance.

Not Rated stars Average rating: Not Rated from 0 votes
.

General information

Price as new4.0  See the detailed rating of design and look, engine performance, reliability, fun-factor, etc. Compare with any other bike.
CategoryClassic
Year2021
ModelTriumph Bonneville Speedmaster
 
 

Engine and Transmission Specifications

Exhaust systemChromed 2 into 2 exhaust system with twin chrome silencers
Emission detailsEuro 4
Greenhouse gases99.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption4.30 litres/100 km (23.3 km/l or 54.70 mpg)
ClutchWet, multi-plate, assist clutch
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection. Multipoint sequential electronic fuel injection
Valves per Cylinder4
Bore x Stroke97.6 x 80.0 mm (3.8 x 3.1 inches)
Compression10.0:1
Torque106.0 Nm (10.8 kgf-m or 78.2 ft.lbs) @ 4000 RPM
Power77.0 HP (56.2 kW) @ 6100 RPM
Engine typeTwin, four-stroke
Capacity:1200.0 ccm (73.22 cubic inches)

Brakes, suspension, Frame and wheels

Wheels32-spoke
Rear brakesSingle disc. ABS. Nissin 2-piston floating caliper
Diameter310 mm (12.2 inches)
Front brakesDouble disc. ABS. Brembo 2-piston floating caliper
Rear tire150/80-R16
Front tire130/90-B16
Rear wheel travel73 mm (2.9 inches)
Rear SuspensionMono-shock RSU with linkage and preload adjustment
Front wheel travel90 mm (3.5 inches)
Front Suspension47 mm Showa cartridge forks
Trail91 mm (3.6 inches)
Rake (fork angle)25.3°
Frame typeTubular steel, twin cradle

Physical measures and capacities

Oil capacity4.50 litres (4.76 US quarts)
Fuel capacity12.00 litres (3.17 US gallons)
Wheelbase1500 mm (59.1 inches)
Ground clearance91 mm (3.6 inches)
Overall width770 mm (30.3 inches)
Overall height1055 mm (41.5 inches)
Seat height705 mm (27.8 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc263.1 kg (580.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Factory warranty24 months unlimited milage
InstrumentsAnalogue speedometer with LCD multi-functional display
StarterElectric
Color optionsJet Black, Red Hopper, Fusion White/Sapphire Black

Performance Profile & Rider Fit

77 hp
Peak Power
4.8s
0-60 mph

Best For

Track10%
City55%
Cornering40%
Daily Riding70%
Touring65%
Passenger70%

Rider Profile

Best ForSuits riders from newer intermediates to seasoned veterans who want a relaxed, torque-rich cruiser rather than a demanding sportbike.
PurposeBuilt for laid-back boulevard cruising and easy highway travel with strong low-rpm torque rather than outright top-end speed.
Rider FitThe low 27.2-27.6 inch seat height and cruiser ergonomics with forward-set controls make it approachable for shorter riders, though the 580 lb wet weight demands confident low-speed handling.
CharacterA classic-styled, chrome-laden parallel-twin cruiser that prioritizes smooth, relaxed torque delivery and comfortable long-haul stance over sharp handling.
Not Ideal ForNot the right choice for riders seeking aggressive cornering performance, off-road capability, or lightweight flickable agility.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Triumph Bonneville Speedmaster Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 705mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Triumph Bonneville Speedmaster, with a moderate knee angle of around 110 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

Find bikes that fit your height →

Rider Reviews

Total comments: 1
64x64

MotorcycleDB Review

The 2021 Triumph Bonneville Speedmaster is a stunning motorcycle that combines classic design with modern performance. The iconic Bonneville style is evident in every aspect of this bike, from the timeless silhouette to the elegant chrome details. With a powerful 1200cc engine and a smooth 6-speed transmission, the Speedmaster offers an exhilarating riding experience. Whether you're cruising through city streets or hitting the open road, this motorcycle delivers nimble handling and ample power. The comfortable dual seat and spacious footboards make long rides a pleasure, and the adjustable handlebars allow for a personalized riding position. Packed with advanced technology such as ride-by-wire throttle and liquid cooling, the 2021 Triumph Bonneville Speedmaster is a perfect blend of heritage and innovation. The 2021 Triumph Bonneville Speedmaster motorcycle is a true modern classic, offering a perfect balance of style and performance. With its timeless design and powerful engine, this bike is sure to turn heads and deliver an exciting ride. Whether you're a seasoned rider or just starting out, the Speedmaster is a versatile choice that offers both comfort and capability on the road. If you're in the market for a motorcycle that combines heritage with cutting-edge features, the 2021 Triumph Bonneville Speedmaster is definitely worth a closer look.
Reply

Add a Comment


Please Login or Register if you would like to leave a comment.