Kawasaki Kx 250 vs Suzuki Rm-z 450
Side-by-side comparison for used motorcycle buyers
Kawasaki Kx 250 vs Suzuki Rm-z 450. Kawasaki Kx 250: Approximately 40–42 hp @ 13,000 rpm (2020+ 4-stroke model; earlier 2-stroke models varied) hp, 110 kg (curb weight, 2020+ model) weight, top speed Approximately 120–130 km/h (estimate; motocross bikes are not optimized for top speed), Motoryk rating 8.2/10. Suzuki Rm-z 450: ~56 hp @ 9,500 rpm (estimated for modern 2018+ spec) hp, 110 kg (wet/curb weight) weight, top speed ~145 km/h (estimated; dependent on gearing and terrain), Motoryk rating 7.8/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Individual Reviews
"Buy it right and you'll grin every single lap."
"Fast, rewarding, but only buy one with full service history."
Top 10 Accessories
Picks that work on either bike.









