Aprilia AF1 125 Sintesi Replica vs Yamaha RD 125 DX (1989)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Aprilia AF1 125 Sintesi Replicastacks up against the Yamaha RD 125 DX. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Aprilia AF1 125 Sintesi Replica | Yamaha RD 125 DX |
|---|---|---|
| Model year | 1989 | 1978 |
| Price | — | — |
| Engine | 125 cc | 125 cc |
| Horsepower | 27 hp | 17 hp |
| Fuel capacity | 4.8 L | — |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 5-speed |
| Front brakes | Single disc | — |
| Rear brakes | Single disc | — |
| Tires | 100/80-17 / 120/80-17 | — |
Aprilia AF1 125 Sintesi Replica vs Yamaha RD 125 DX — which should you buy?
Picking between the Aprilia AF1 125 Sintesi Replica and the Yamaha RD 125 DX usually comes down to the numbers you care about most. On paper, the Aprilia AF1 125 Sintesi Replica brings 27 hp, while the Yamaha RD 125 DX counters with 17 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:

