KTM 450 Rally Prototype vs TM Racing 450Fi 4T MX (2018)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KTM 450 Rally Prototypestacks up against the TM Racing 450Fi 4T MX. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | KTM 450 Rally Prototype | TM Racing 450Fi 4T MX |
|---|---|---|
| Model year | 2018 | 2017 |
| Price | — | — |
| Engine | 449 cc | 449 cc |
| Weight | 107 kg | — |
| Seat height | 38 mm | — |
| Fuel capacity | 2.3 L | 2.2 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 5-speed |
| Front brakes | Single disc. Brake calipers on floating bearings | Single disc. Wave disc. |
| Rear brakes | Single disc. Brake calipers on floating bearings | Single disc. Wave disc. |
| Tires | — | 90/90-x21 / 110/90-X19 |
KTM 450 Rally Prototype vs TM Racing 450Fi 4T MX — which should you buy?
Picking between the KTM 450 Rally Prototype and the TM Racing 450Fi 4T MX usually comes down to the numbers you care about most. On paper, the KTM 450 Rally Prototype brings its published horsepower in a 107 kg package, while the TM Racing 450Fi 4T MX counters with its own power figure.
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:

