KTM SX 250 F vs Thumpstar TSF 250 X3 (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KTM SX 250 Fstacks up against the Thumpstar TSF 250 X3. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | KTM SX 250 F | Thumpstar TSF 250 X3 |
|---|---|---|
| Model year | 2026 | 2023 |
| Price | $10,699 | — |
| Engine | 249 cc | 250 cc |
| Weight | 101 kg | 103 kg |
| Seat height | 958 mm | 37 mm |
| Fuel capacity | 7.0 L | 1.7 L |
| Fuel type | petrol | petrol |
| Transmission | Manual, 5 speed, Chain | 5-speed |
| Front brakes | Hydraulic Disc | Single disc. Dual Piston |
| Rear brakes | Hydraulic Disc | Single disc. Single piston |
| Tires | Dunlop® GEOMAX MX34 80/100 R21 51M / Dunlop® GEOMAX MX34 110/90 R19 62M | 80/100-21 / 100/90-18 |
KTM SX 250 F vs Thumpstar TSF 250 X3 — which should you buy?
Picking between the KTM SX 250 F and the Thumpstar TSF 250 X3 usually comes down to the numbers you care about most. On paper, the KTM SX 250 F brings its published horsepower in a 101 kg package, while the Thumpstar TSF 250 X3 counters with its own power figure at 103 kg.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: