If straight-line speed is your priority, the RS 660 Extrema takes the lead. With 22 HP more than the 500SR VOOM, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the RS 660 Extrema has a clear advantage. Weighing in 14kg less than the 500SR VOOM, it will feel significantly easier to handle in low-speed traffic, parking maneuvers, and twisty corners. Riders with a shorter inseam should lean towards the 500SR VOOM. Its seat height is 25mm lower than the RS 660 Extrema, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the rs660 offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | RS 660 Extrema | 500SR VOOM |
|---|---|---|
| Displacement | 659 | 499 |
| Power | 100 | 77.8 |
| Cylinders | 2 | 4 |
| Weight | 180 | 194 |
| Seat height | 820 | 795 |