2002 Yamaha PW50 vs 2021 KTM 50 SX
Full specifications comparison •
2 motorcycles
Full Specifications
Differs
Same
| General |
| Colours | - | White/Orange |
| Dimensions |
| Ground Clearance (in.) | 4.1 inches | 9.9 inches |
| Ground Clearance (mm) | 105 mm | 252 mm |
| Wheelbase (in.) | 33.7 inches | - |
| Seat Height | 485 mm / 19.1 in. | 684 mm / 26.9 in. |
| Height | 715 mm / 28.1 in. | - |
| Length | 1,245 mm / 49.0 in. | - |
| Width | 575 mm / 22.6 in. | - |
| Weights & Capacities |
| Dry Weight | 37 kg / 81.6 lbs | 41.5 kg / 91.5 lbs |
| Fuel Capacity | - | 2.30 litres / 0.61 US gallons |
| Performance |
| Max Torque | 3.80 | - |
| Power-to-Weight Ratio | 0.0730 HP/kg | - |
| Engine |
| Fuel Control | - | Double Overhead Cams/Twin Cam (DOHC) |
| Engine Type | Single cylinder | Single cylinder, two-stroke |
| Stroke | 2 | - |
| Bore x Stroke (in,) | 1.6 x 1.5 inches | 1.6 x 1.6 inches |
| Displacement (cc) | 49.00 cc | 49.0 cc |
| Bore x Stroke (mm) | 40.0 x 39.2 mm | 39.5 x 40.0 mm |
| Displacement (ci) | 2.99 cubic inches | 2.99 cubic inches |
| Compression Ratio | 6.6:1 | - |
| Starter | - | Kick |
| Drivetrain |
| Clutch | - | Centrifugal |
| Final Drive | - | Chain (final drive) |
| Gearbox | - | Automatic |
| Chassis |
| Frame Type | - | 25CrMo4 steel central-tube frame |
| Suspension - Front | - | XACT 35 WP Upside-Down fork, Ø 35 mm |
| Suspension - Rear | - | XACT WP mono shock |
| Rake | - | 24.0° |
| Wheel Travel - Front | 60 mm / 2.4 in. | 205 mm / 8.1 in. |
| Wheel Travel - Rear | 50 mm / 2.0 in. | 180 mm / 7.1 in. |
| Wheels & Brakes |
| Brakes - Front | Expanding brake | Single disc |
| Brakes - Rear | Expanding brake | Single disc |
Verdict
🏆
Winner on specs
2021 KTM 50 SX
The 2021 KTM 50 SX edges out the 2002 Yamaha PW50 thanks to its greater ground clearance, higher rear wheel travel and higher front wheel travel. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.
Key Differences
2002 Yamaha PW50 - Advantages
- 📏Lower seat height: 485 mm vs 684 mm - accessible to a wider range of rider heights.
2021 KTM 50 SX - Advantages
- 🏔️More ground clearance: 252 mm vs 105 mm - better clearance over rocks and obstacles.
- 🔄More rear wheel travel: 180 mm vs 50 mm - absorbs bigger hits and rough terrain better.
- 🔄More front wheel travel: 205 mm vs 60 mm - greater compliance over rough surfaces.
2002 Yamaha PW50 vs 2021 KTM 50 SX - FAQs
What are the engine differences between the 2002 Yamaha PW50 and 2021 KTM 50 SX?
The 2002 Yamaha PW50 uses Single cylinder, while the 2021 KTM 50 SX is powered by Single cylinder, two-stroke. This is a fundamental difference - the 2002 Yamaha PW50 is a four-stroke engine while the 2021 KTM 50 SX runs a two-stroke, resulting in very different power delivery, maintenance requirements, and riding character.
Which bike is better for shorter riders, the 2002 Yamaha PW50 or the 2021 KTM 50 SX?
The 2002 Yamaha PW50 has the lower seat at 485 mm, making it more accessible. The 2021 KTM 50 SX sits higher at 684 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Which should I buy, the 2002 Yamaha PW50 or the 2021 KTM 50 SX?
Both are strong choices. The 2002 Yamaha PW50 has the edge in lower seat height, while the 2021 KTM 50 SX stands out for greater ground clearance and 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.