| Attribute | Yamaha SR 400 2012 × | Suzuki ST 250E × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2011 |
| Make | Yamaha | Suzuki |
| Model | Yamaha SR 400 | Suzuki ST 250E |
| Category | Allround | Allround |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 2 | 2 |
| Fuel system | Carburettor. BSR33 | Carburettor |
| Displacement (cm³) | 399 | 249 |
| Power (kw) | 19.7 | 13.7 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 29 | 21 |
| Bore (mm) | 87 | 72 |
| Stroke (mm) | 67.2 | 61.2 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Overhead Cams (OHC) | Single Overhead Cams (SOHC) |
| Ignition | - | Full transistor type |
| Clutch | - | Wet multi-plate coil spring |
| Compression | 8.5:1 | 9.2:1 |
| Exhaust system | - | Chrome-plated muffler |
| Chassis | ||
| Front suspension | Telescopic fork | - |
| Rear suspension | Dual shocks | - |
| Front brakes | Single disc. 2-piston calipers | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | Steel | - |
| Front tyre | 90/100-18 | 90/90-18 |
| Rear tyre | 110/90-18 | 110/90-18 |
| Wheels | - | Chrome plated wheel rims and spokes, |
| Trail (mm) | 111 | 92 |
| Rake (fork angle) (degree) | 24.7 | 25 |
| Other | ||
| Starter | Kick | Electric |
| Dimensions | ||
| Wheelbase (mm) | 1,410 | 1,375 |
| Dry weight (kg) | 152 | 146 |
| Power/weight ratio | 0.1296 | 0.0938 |
| Overall height (mm) | 1,100 | 1,070 |
| Overall length (mm) | 2,085 | 2,070 |
| Overall width (mm) | 750 | 750 |
| Seat height (mm) | 790 | 770 |
| Ground clearance (mm) | 140 | 130 |
| Performance | ||
| Fuel capacity (l) | 12 | 12 |
| Oil capacity (l) | - | 1.7 |