Yamaha SR400 - 2015 Specifications and Reviews
The 2015 Yamaha SR400 is a lightweight, air-cooled retro roadster that appeals to riders seeking simplicity and classic styling. Its kick-start single-cylinder engine and minimalist design emphasize rider engagement and mechanical transparency. Best known for its affordable entry point into motorcycling and timeless neo-vintage aesthetic, the SR400 suits casual commuters and enthusiasts valuing character over performance.
General information | |
| Category | Allround |
| Year | 2015 |
| Model | Yamaha SR400 |
| | |
Engine and Transmission Specifications | |
| Clutch | Wet, Multiple Disc |
| Transmission type,final drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Air |
| Lubrication system | Wet-sump |
| Fuel control | Single Overhead Cams (SOHC) |
| Fuel system | Injection |
| Valves per cylinder | 2 |
| Bore x Stroke | 87.0 x 67.2 mm (3.4 x 2.6 inches) |
| Compression | 8.5:1 |
| Torque | 27.40 Nm (2.8 kgf-m or 20.2 ft.lbs) @ 3000 RPM |
| Power | 22.93 HP (16.7 kW) @ 6500 RPM |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 399.00 ccm (24.35 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes diameter | 130 mm (5.1 inches) |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc |
| Rear tyre | 110/90-18 |
| Front tyre | 90/100-18 |
| Rear wheel travel | 125 mm (4.9 inches) |
| Rear Suspension | Dual shocks |
| Front wheel travel | 150 mm (5.9 inches) |
| Front Suspension | Telescopic fork |
| Trail | 111 mm (4.4 inches) |
| Rake (fork angle) | 24.7° |
| Frame type | Steel Double Cradle |
Physical measures and capacities | |
| Oil capacity | 2.40 litres (0.16 quarts) |
| Fuel capacity | 12.00 litres (3.17 gallons) |
| Wheelbase | 1,410 mm (55.5 inches) |
| Ground clearance | 140 mm (5.5 inches) |
| Overall width | 750 mm (29.5 inches) |
| Overall length | 2,085 mm (82.1 inches) |
| Seat height | 790 mm (31.1 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 174.0 kg (383.6 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Starter | Kick |
| Color options | Black, grey |
Performance Profile & Rider Fit
22.9 hp
Peak Power
9.5s
0-60 mph
Best For
Track10%
City75%
Cornering50%
Daily Riding55%
Touring25%
Passenger30%
Rider Profile
| Best For | A friendly, low-intimidation single that suits newer riders or experienced riders wanting a simple, analog machine. |
| Purpose | Built for classic-styled city riding, short jaunts, and enjoying the mechanical simplicity of a kick-start single rather than for outright performance. |
| Rider Fit | Light weight and a moderate seat height make it easy for shorter or less physically strong riders to manage at low speed and in traffic. |
| Character | A charming, old-school retro roadster that rewards relaxed, unhurried riding with plenty of mechanical character. |
| Not Ideal For | Not suited for highway touring, two-up long distances, or riders wanting strong acceleration and modern performance. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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