UM Max 125 XL vs AJS Highway Star 125 (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the UM Max 125 XLstacks up against the AJS Highway Star 125. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | UM Max 125 XL | AJS Highway Star 125 |
|---|---|---|
| Model year | 2021 | 2020 |
| Price | — | — |
| Engine | 124 cc | 124 cc |
| Horsepower | 12 hp | 11 hp |
| Torque | 9 Nm | 9 Nm |
| Weight | — | 164 kg |
| Seat height | 32 mm | 28 mm |
| Fuel capacity | 3.2 L | 5.0 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 5-speed |
| Front brakes | Single disc | Double disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 2.75-18 / 90/90-18 | 120/80-17 / 140/70-17 |
UM Max 125 XL vs AJS Highway Star 125 — which should you buy?
Picking between the UM Max 125 XL and the AJS Highway Star 125 usually comes down to the numbers you care about most. On paper, the UM Max 125 XL brings 12 hp, while the AJS Highway Star 125 counters with 11 hp at 164 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:

