2020 KTM 125 SX vs 2022 Yamaha XTZ125
Full specifications comparison •
2 motorcycles
Full Specifications
Differs
Same
| General |
| Comments | - | Sold in Asia. |
| Colours | White, Orange | Power Black, Yamaha Blue |
| Dimensions |
| Ground Clearance (in.) | - | 10.2 inches |
| Ground Clearance (mm) | - | 260 mm |
| Seat Height | - | 840 mm / 33.1 in. |
| Wheelbase | - | 1300 mm / 51.2 in. |
| Height | - | 1115 mm / 43.9 in. |
| Length | - | 2090 mm / 82.3 in. |
| Width | - | 830 mm / 32.7 in. |
| Weights & Capacities |
| Oil Capacity (l) | - | 1.20 litres |
| Oil Capacity (Quarts) | - | 1.27 US quarts |
| Dry Weight | 137 kg / 302.0 lbs | - |
| Fuel Capacity | - | 11.00 litres / 2.91 US gallons |
| Wet Weight | - | 118.0 kg / 260.1 lbs |
| Performance |
| Max Torque | - | 9.9 Nm (1.0 kgf-m or 7.3 ft.lbs) @ 5500 Revolutions" |
| Power-to-Weight Ratio | 0.1095 HP/kg | - |
| Engine |
| Bore x Stroke (in,) | 2.1 x 2.1 inches | 2.1 x 2.1 inches |
| Bore x Stroke (mm) | 54.0 x 54.5 mm | 54.0 x 54.0 mm |
| Displacement (cc) | 124.8 cc | 124.0 cc |
| Displacement (ci) | 7.62 cubic inches | 7.57 cubic inches |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) | Single Overhead Cams (SOHC) |
| Engine Type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Fuel System | Injection | Carburettor |
| Compression Ratio | - | 10.0:1 |
| Engine Lubrication | Wet sump | Wet sump |
| Ignition | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan | CDI |
| Starter | Electric | Electric |
| Valve System | - | 2 |
| Drivetrain |
| Clutch | Wet multi-disc clutch, mechanically actuated | Wet, multiple-disc coil spring |
| Final Drive | Chain (final drive) | Chain (final drive) |
| Gearbox | 6-speed | 5-speed |
| Primary Drive | 5/8 x 1/4 (520) O Ring. Primary drive: 22:72. | - |
| Chassis |
| Frame Type | Central double-cradle | Diamond |
| Suspension - Front | WP upside-down Ø 48 mm | Telescopic forks |
| Suspension - Rear | WP Monoshock | Swingarm |
| Seat | - | Dual seat and passenger grab rails |
| Wheel Travel - Front | - | 180 mm / 7.1 in. |
| Wheel Travel - Rear | 150 mm / 5.9 in. | 180 mm / 7.1 in. |
| Electrical Systems |
| Instrumentation | - | Analogue |
| Wheels & Brakes |
| Brakes - Front | Single disc | Single disc |
| Brakes - Rear | Single disc | Expanding brake (drum brake) |
| Tyres - Front | 110-17 | 80/90-21 |
Verdict
⚖️
Too close to call
The 2020 KTM 125 SX and the 2022 Yamaha XTZ125 are evenly matched across the key measurable criteria. Your decision comes down to personal preference, riding style, and which brand's dealer network best suits your location.
Key Differences
2020 KTM 125 SX - Advantages
- 🔧Fuel injection: Precise fuelling, better cold-start reliability, and lower maintenance requirements.
2022 Yamaha XTZ125 - Advantages
- 🔄More rear wheel travel: 180 mm vs 150 mm - absorbs bigger hits and rough terrain better.
2020 KTM 125 SX vs 2022 Yamaha XTZ125 - FAQs
What are the engine differences between the 2020 KTM 125 SX and 2022 Yamaha XTZ125?
The 2020 KTM 125 SX uses Single cylinder, two-stroke, while the 2022 Yamaha XTZ125 is powered by Single cylinder, four-stroke. This is a fundamental difference - the 2020 KTM 125 SX is a two-stroke engine while the 2022 Yamaha XTZ125 runs a four-stroke, resulting in very different power delivery, maintenance requirements, and riding character.
Which should I buy, the 2020 KTM 125 SX or the 2022 Yamaha XTZ125?
Both are strong choices. The 2020 KTM 125 SX has the edge in fuel injection, while the 2022 Yamaha XTZ125 stands out for higher rear wheel travel. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.