If straight-line speed is your priority, the K1600 Grand America takes the lead. With 65 HP more than the Road King Special, 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 Road King Special. Its seat height is 55mm lower than the K1600 Grand America, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the k1600 offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.
| Spec | K1600 Grand America | Road King Special |
|---|---|---|
| Displacement | 1649 | 1868 |
| Power | 160 | 95 |
| Cylinders | 6 | 2 |
| Weight | 367 | 366 |
| Seat height | 750 | 695 |