14 August. Friday 2026
Triumph Bonneville Speedmaster - 2018 Specifications and Reviews
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.
General information | |
| Category | Classic |
| Year | 2018 |
| Model | Triumph Bonneville Speedmaster |
Engine and Transmission Specifications | |
| Exhaust system | Chromed 2 into 2 exhaust system with twin chrome silencers |
| Greenhouse gases | 104.4 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 4.50 litres/100 km (22.2 km/l or 52.27 mpg) |
| Clutch | Wet, multi-plate assist clutch |
| Transmission type,final drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Air |
| Fuel control | Single Overhead Cams (SOHC) |
| Fuel system | Injection |
| Valves per cylinder | 4 |
| Bore x Stroke | 97.6 x 80.0 mm (3.8 x 3.1 inches) |
| Compression | 10.0:1 |
| Torque | 106.00 Nm (10.8 kgf-m or 78.2 ft.lbs) @ 4000 RPM |
| Power | 77.00 HP (56.2 kW) @ 6100 RPM |
| Engine type | Twin, four-stroke |
Brakes, suspension, Frame and wheels | |
| Wheels | 32-spoke |
| Rear brakes diameter | 255 mm (10.0 inches) |
| Rear brakes | Single disc. ABS. Nissin 2-piston floating caliper |
| Front brakes diameter | 310 mm (12.2 inches) |
| Front brakes | Single disc. ABS. Brembo 2-piston floating caliper |
| Rear tyre | 150/80-R16 |
| Front tyre | 130/90-B16 |
| Rear wheel travel | 73 mm (2.9 inches) |
| Rear Suspension | KYB monoshock with linkage and stepped preload adjuster |
| Front wheel travel | 90 mm (3.5 inches) |
| Front Suspension | KYB 41 mm forks with cartridge damping |
| Trail | 91 mm (3.6 inches) |
| Rake (fork angle) | 25.3° |
| Frame type | Tubular steel cradle. Twin-sided, tubular steel swing arm. |
| | |
Physical measures and capacities | |
| Oil capacity | 4.50 litres (0.30 quarts) |
| Fuel capacity | 12.11 litres (3.20 gallons) |
| Wheelbase | 1,510 mm (59.4 inches) |
| Overall width | 770 mm (30.3 inches) |
| Overall height | 1,040 mm (40.9 inches) |
| Seat height | 705 mm (27.8 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.3136 HP/kg |
| Dry weight | 245.5 kg (541.2 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Factory warranty | 24 months unlimited milage |
| Instruments | LCD multi-functional instrument pack with analogue speedometer, odometer, gear position indicator, fuel gauge |
| Starter | Electric |
| Color options | Black, white, silver, silver/red |
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 For | Suits riders from newer intermediates to seasoned veterans who want a relaxed, torque-rich cruiser rather than a demanding sportbike. |
| Purpose | Built for laid-back boulevard cruising and easy highway travel with strong low-rpm torque rather than outright top-end speed. |
| Rider Fit | The 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. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
Total comments: 1
MotorcycleDB Review
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.Add a Comment
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