| Attribute | Suzuki Boulevard 400 2010 × | Yamaha Drag Star Classic Four × |
|---|---|---|
| General | ||
| Production from (year) | 2010 | 2002 |
| Make | Suzuki | Yamaha |
| Model | Suzuki Boulevard 400 | Yamaha Drag Star Classic Four |
| Category | Custom / cruiser | Custom / cruiser |
| Engine and transmission | ||
| Engine type | V2, four-stroke | V2, four-stroke |
| Valves per cylinder | - | 2 |
| Fuel system | Carburettor. BDSR 29 | Carburettor |
| Displacement (cm³) | 399 | 399 |
| Power (kw) | 23.5 | 23.4 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | - | Shaft drive (cardan) |
| Torque (Nm) | 33 | 32 |
| Bore (mm) | 65 | 68 |
| Stroke (mm) | 62.5 | 55 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Single Overhead Cams (SOHC) | Single Overhead Cams (SOHC) |
| Ignition | Full transistor system | - |
| Clutch | Wet multiple | - |
| Lubrication system | Wet sump | - |
| Compression | 10.5:1 | 9.7:1 |
| Exhaust system | Slash-cut dual mufflers. | - |
| Chassis | ||
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Expanding brake |
| Front tyre | 130/90-16 | 130/90-16 67S |
| Rear tyre | 170/80-15 | 170/80-15 M/C 77S |
| Other | ||
| Starter | Electric | - |
| Dimensions | ||
| Wheelbase (mm) | 1,655 | 1,625 |
| Dry weight (kg) | 240 | 224 |
| Power/weight ratio | 0.0979 | 0.1045 |
| Overall height (mm) | 1,125 | 1,105 |
| Overall length (mm) | 2,420 | 2,450 |
| Overall width (mm) | 920 | 930 |
| Seat height (mm) | 700 | 710 |
| Ground clearance (mm) | 140 | 145 |
| Performance | ||
| Fuel capacity (l) | 17 | 15 |