| Attribute | Value |
| General |
| Production from | 2008 year |
| Make | Yamaha |
| Model | Yamaha YBR125 Custom |
| Category | Custom / cruiser |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Injection |
| Engine details | Add |
| Displacement | 124 cm³ |
| Power | 7.3 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Air |
| Transmission type,final drive | Chain |
| Torque | 9.6 Nm |
| Bore | 54 mm |
| Stroke | 54 mm |
| Gearbox | 5-speed |
| Greenhouse gases | Add |
| Fuel control | Single Overhead Cams (SOHC) |
| Emission details | Add |
| Driveline | Add |
| Ignition | TCI |
| Clutch | Wet, multiple disc |
| Lubrication system | Wet sump |
| Compression | 10.0:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Telescopic forks |
| Rear suspension | Swingarm |
| Front brakes | Single disc |
| Rear brakes | Expanding brake (drum brake) |
| Diameter | 130 mm |
| Frame type | Diamond shaped |
| Front tyre | 100/80-M17 |
| Rear tyre | 90/90-M18 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | 130 mm |
| Rear wheel travel | 120 mm |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Electric & kick |
| Color options | Add |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,290 mm |
| Kerb weight | Add |
| Dry weight | 118 kg |
| Power/weight ratio | 0.0619 |
| Overall height | 1,125 mm |
| Overall length | 2,055 mm |
| Overall width | 845 mm |
| Seat height | 760 mm |
| Alternate seat height | Add |
| Ground clearance | 140 mm |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | Add |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 12 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |