Ninja 650 2025 vs ZX-4R 2025

If straight-line speed is your priority, the ZX-4R takes the lead. With 9 HP more than the Ninja 650, 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 4kg difference between them, so handling characteristics will depend more on center-of-gravity than raw weight. Bottom Line: While both are capable, the zx4r offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.