If straight-line speed is your priority, the R6 Race takes the lead. With 18 HP more than the RS 660, it offers a more spirited ride that will be noticeable on highway overtakes or track days. Both bikes share a similar footprint on the scale, with only a negligible 2kg difference between them, so handling characteristics will depend more on center-of-gravity than raw weight. Riders with a shorter inseam should lean towards the RS 660. Its seat height is 30mm lower than the R6 Race, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the r6race offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | RS 660 | R6 Race |
|---|---|---|
| Displacement | 659 | 599 |
| Power | 100 | 118.4 |
| Cylinders | 2 | 4 |
| Weight | 183 | 185 |
| Seat height | 820 | 850 |
| MSRP (EU) | 11599 | 14390 |