RIVERFOX 501 ST - TECHNICAL SPECIFICATIONS
| Design category | C |
| Lenght over all | 4,97 m |
| Total width | 1,95 m |
| Width in the waterline | 1,83 m |
| Maximum engine power | 103 kW - 140 HP |
| Maximum engine weight | 190 kg |
| Transom height | L |
| Maksymalna nośność | 540 kg |
| Light craft mass | 420 kg |
| Wyporność | 960 kg |
| Maximum number of persons | 5 |