Yamaha DT 400 MX vs Mash Custom 400 (2017)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha DT 400 MXstacks up against the Mash Custom 400. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha DT 400 MX | Mash Custom 400 |
|---|---|---|
| Model year | 1979 | 2017 |
| Price | — | $6,199 |
| Engine | 397 cc | 398 cc |
| Horsepower | 21 hp | 27 hp |
| Torque | — | 30 Nm |
| Seat height | — | 31 mm |
| Fuel capacity | 2.4 L | 3.4 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 5-speed |
| Front brakes | Expanding brake | Single disc |
| Rear brakes | Expanding brake | Expanding brake (drum brake) |
| Tires | 3.00-21 / 4.00-18 | 100/90-19 / 130/70-18 |
Yamaha DT 400 MX vs Mash Custom 400 — which should you buy?
Picking between the Yamaha DT 400 MX and the Mash Custom 400 usually comes down to the numbers you care about most. On paper, the Yamaha DT 400 MX brings 21 hp, while the Mash Custom 400 counters with 27 hp.
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:

