RS 660 2022 vs 990 RC R 2026

If straight-line speed is your priority, the 990 RC R takes the lead. With 28 HP more than the RS 660, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the RS 660 has a clear advantage. Weighing in 12kg less than the 990 RC R, 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 RS 660. Its seat height is 25mm lower than the 990 RC R, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the 990rc offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.