Hyosung RT125D vs Harley-Davidson S-125 (2016)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Hyosung RT125Dstacks up against the Harley-Davidson S-125. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Hyosung RT125D | Harley-Davidson S-125 |
|---|---|---|
| Model year | 2016 | 1959 |
| Price | — | — |
| Engine | 125 cc | 125 cc |
| Weight | 135 kg | 91 kg |
| Seat height | 31 mm | — |
| Fuel capacity | 2.4 L | — |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | — |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 130/80-18 / 180/80-14 | — |
Hyosung RT125D vs Harley-Davidson S-125 — which should you buy?
Picking between the Hyosung RT125D and the Harley-Davidson S-125 usually comes down to the numbers you care about most. On paper, the Hyosung RT125D brings its published horsepower in a 135 kg package, while the Harley-Davidson S-125 counters with its own power figure at 91 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: