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Cruisers

2018Triumph Bonneville Speedmaster

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The 2018 Triumph Bonneville Speedmaster is a cruiser designed for riders seeking classic styling with modern reliability. Known for its low 705mm seat height and accessible power delivery, it excels as an approachable entry point to cruiser motorcycles. The bike combines retro British character with contemporary features like ABS braking and an LCD instrument display.

Capacity: 1200.0 ccm
Engine: Parallel Twin, four-stroke
Gearbox: 6-speed
Dry weight: 245.5 kg
Seat height: 705 mm
Power: 77.0 HP (56.2 kW) @ 6100 RPM

⇄ Compare with another bike ＋ Add to garage All model years

Other years 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail10%

Cornering40%

City riding55%

Daily riding70%

Touring65%

Two-up70%

Track10%

Best for: Built for laid-back boulevard cruising and easy highway travel with strong low-rpm torque rather than outright top-end speed.
Built for: A classic-styled, chrome-laden parallel-twin cruiser that prioritizes smooth, relaxed torque delivery and comfortable long-haul stance over sharp handling.
Not ideal for: Not the right choice for riders seeking aggressive cornering performance, off-road capability, or lightweight flickable agility.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 705mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2018 Triumph Bonneville Speedmaster, with a cramped knee angle of around 75 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Range and running costs

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Units

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Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine

Capacity: 1200.0 ccm
Power: 77.0 HP (56.2 kW) @ 6100 RPM
CO2 Emissions: 111 CO2 g/km
EPA Certificate No.: JTDXC1.20LLA-010
EPA Est. Fuel Consumption: 4.71 L/100km (49.9 US mpg)
EPA CO Emissions: 2.0 CO g/km
Torque: 106.0 Nm (10.8 kgf-m) @ 4000 RPM
Engine type: Parallel Twin, four-stroke
Fuel consumption: 4.50 litres/100 km (22.2 km/l)
Power/weight ratio: 0.3136 HP/kg (dry)
Bore x stroke: 97.6 x 80.0 mm
Compression: 10.0:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Aspiration: Naturally aspirated
Valves per cylinder: 4

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multi-plate assist clutch

Dimensions & weight

Wheelbase: 1510 mm
Overall width: 770 mm
Overall height: 1040 mm
Seat height: 705 mm
Dry weight: 245.5 kg
Wet weight: 263.1 kg
Fuel capacity: 12.10 litres
Oil capacity: 4.50 litres

Chassis & suspension

Frame: Tubular steel cradle. Twin-sided, tubular steel swing arm.
Front suspension: KYB 41 mm forks with cartridge damping
Rear suspension: KYB monoshock with linkage and stepped preload adjuster
Front wheel travel: 90 mm
Rear wheel travel: 73 mm
Rake (fork angle): 25.3°
Trail: 91 mm

Brakes & wheels

Front brakes: Single disc. ABS. Brembo 2-piston floating caliper
Front brakes diameter: 310 mm
Rear brakes: Single disc. ABS. Nissin 2-piston floating caliper
Rear brakes diameter: 255 mm
ABS: Yes
Front tyre: 130/90-B16
Rear tyre: 150/80-R16

Other

Color options: Black, white, silver, silver/red
Warranty: 24

Specs last verified against published sources: October 2026.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2018	2020	2022	2024	2026
Capacity	1200 cc	1200 cc	1200 cc	1200 cc	1200 cc
Dry weight	246 kg	246 kg	246 kg	263 kg	—
Seat height	705 mm	705 mm	705 mm	705 mm	705 mm
Fuel capacity	12.1 L	12 L	12 L	12 L	14 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2018 Triumph Bonneville Speedmaster is a sleek and powerful motorcycle that delivers an exceptional riding experience. With a classic design and modern features, this bike is perfect for both city cruising and long highway rides. The 1200cc parallel-twin engine provides plenty of power and torque, while the comfortable riding position and smooth handling make it a joy to ride. The Speedmaster also comes with a range of advanced technology, including ride-by-wire throttle, switchable traction control, and cruise control, making it a versatile and reliable choice for any rider.

Overall, the 2018 Triumph Bonneville Speedmaster is a top-of-the-line motorcycle that offers a perfect blend of style, performance, and comfort. Whether you're a seasoned rider looking for a new addition to your collection or a novice looking for a reliable and stylish first bike, the Speedmaster has everything you need to hit the road with confidence. With its impressive engine, advanced technology, and timeless design, this motorcycle is sure to turn heads and provide an unforgettable riding experience.

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