Kawasaki Kx 450 vs Suzuki Rm-z 450
Side-by-side comparison for used motorcycle buyers
Kawasaki Kx 450 vs Suzuki Rm-z 450. Kawasaki Kx 450: ~55 hp @ 9,000 rpm (estimated; Kawasaki does not officially publish power figures — note: dyno results typically range 53–58 hp) hp, 110 kg (curb weight, 2023 model) weight, top speed ~145 km/h (estimated; gearing and terrain dependent — note: best estimate, not manufacturer-specified), Motoryk rating 8.5/10. 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
"A brilliant 450 that rewards experienced riders who buy smart."
"Fast, rewarding, but only buy one with full service history."
Top 10 Accessories
Picks that work on either bike.









