RS 660 Extrema 2022 vs 450SRS 2024

If straight-line speed is your priority, the RS 660 Extrema takes the lead. With 54 HP more than the 450SRS, 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 1kg 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 450SRS. 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.