14 August. Friday 2026
Triumph Street Twin - 2021 Specifications and Reviews
The 2021 Triumph Street Twin is a modern classic motorcycle that appeals to riders seeking an accessible, retro-styled middleweight with genuine character. Powered by a 900cc parallel-twin engine producing 65 horsepower, it delivers responsive performance and manageable handling ideal for both new and experienced riders. Known for its timeless design, agile dynamics, and approachable nature, the Street Twin excels as an everyday commuter and weekend companion.
General information | |
| Price as new | 3.3 See the detailed rating of design and look, engine performance, reliability, fun-factor, etc. Compare with any other bike. |
| Category | Classic |
| Year | 2021 |
| Model | Triumph Street Twin |
| | |
Engine and Transmission Specifications | |
| Exhaust system | Brushed stainless steel 2 into 2 exhaust system with twin silencers |
| Greenhouse gases | 89.8 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 3.87 litres/100 km (25.8 km/l or 60.78 mpg) |
| Clutch | Wet. multi-plate assist |
| Transmission type | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Multipoint sequential electronic fuel injection |
| Valves per Cylinder | 4 |
| Bore x Stroke | 84.6 x 80.0 mm (3.3 x 3.1 inches) |
| Compression | 11.0:1 |
| Torque | 80.0 Nm (8.2 kgf-m or 59.0 ft.lbs) @ 3800 RPM |
| Power | 65.0 HP (47.4 kW) @ 7500 RPM |
| Engine details | 270° crank angle |
| Engine type | Twin, four-stroke |
| Capacity: | 900.0 ccm (54.92 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Cast aluminium alloy multi-spoke |
| Rear brakes | Single disc. ABS. Floating disc. Nissin 2-piston calipers. |
| Diameter | 310 mm (12.2 inches) |
| Front brakes | Single disc. ABS. Floating discs. Brembo 4-piston calipers. |
| Rear tire | 150/70-R17 |
| Front tire | 100/90-18 |
| Rear wheel travel | 120 mm (4.7 inches) |
| Rear Suspension | Twin RSUs with preload adjustment |
| Front wheel travel | 120 mm (4.7 inches) |
| Front Suspension | 41mm cartridge forks |
| Trail | 102 mm (4.0 inches) |
| Rake (fork angle) | 25.1° |
| Frame type | Tubular steel, with twin cradles |
| | |
Physical measures and capacities | |
| Oil capacity | 3.80 litres (4.02 US quarts) |
| Fuel capacity | 12.11 litres (3.20 US gallons) |
| Wheelbase | 1450 mm (57.1 inches) |
| Overall width | 785 mm (30.9 inches) |
| Overall height | 1110 mm (43.7 inches) |
| Seat height | 765 mm (30.1 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 215.9 kg (476.0 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Ride-by-wire throttle with switchable traction control. 2 riding modes, road and rain. |
| Instruments | Analogue speedometer with LCD multi-functional display |
| Starter | Electric |
| Color options | Cobalt Blue, Jet Black, Matt Ironstone |
Performance Profile & Rider Fit
65 hp
Peak Power
4.8s
0-60 mph
Best For
Track25%
City88%
Cornering72%
Daily Riding85%
Touring45%
Passenger50%
Rider Profile
| Best For | Well suited to newer riders and returning riders thanks to its approachable power delivery, low seat height, and forgiving manners, while still having enough character to satisfy more experienced owners looking for a relaxed second bike. |
| Purpose | Built primarily as a stylish, easygoing modern classic for commuting and weekend rides rather than outright performance or long-distance touring. |
| Rider Fit | Its low 765mm seat height and modest 216kg weight make it accessible to shorter riders and easy to manage at a standstill or in tight parking situations. |
| Character | A torquey, characterful parallel-twin roadster that prioritizes smooth, tractable real-world power and classic British styling over outright speed. |
| Not Ideal For | Not the right choice for riders chasing high-speed thrills, serious off-road capability, or a dedicated long-haul touring setup with passenger comfort and wind protection. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Shop This Bike
Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2021 Triumph Street Twin motorcycle is a versatile and stylish option for riders looking for a modern classic bike. With its 900cc parallel-twin engine, the Street Twin offers plenty of power and torque for an exhilarating ride. The updated chassis and suspension provide agile handling, making it a joy to maneuver through city streets or twisty backroads. The classic styling, combined with modern features such as ride-by-wire throttle and multiple riding modes, make the Street Twin a great option for riders who want a blend of vintage aesthetics and contemporary performance. Overall, the 2021 Triumph Street Twin motorcycle is a fantastic choice for riders looking for a well-rounded modern classic bike. Its combination of classic styling, modern features, and powerful performance make it a standout option in its class. Whether you're a seasoned rider or a beginner, the Street Twin's versatility and agility make it a great choice for any rider looking for a stylish and capable motorcycle.Add a Comment
Related Motorcycle Specifications
More Triumph Motorcycles
- Motorcycles in database: 45863
- Technical specifications: 1490298
- Images of motorcycles: 72681
- Videos: 339
- Manufacturers: 501
Please Login or Register if you would like to leave a comment.