Suzuki Rm-z 450 vs Suzuki Rmz450
Side-by-side comparison for used motorcycle buyers
Suzuki Rm-z 450 vs Suzuki Rmz450. 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. Suzuki Rmz450: ~56 hp @ 9,000 rpm (estimate based on dyno testing of modern RM-Z450) hp, 111 kg (curb/wet weight — 2023 model) weight, top speed ~145 km/h (estimate; top speed is not a primary design focus for motocross bikes), Motoryk rating 7.5/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Suzuki Rm-z 450
Suzuki Rmz450
Horsepower (hp)
56 hp
56 hp
Torque (Nm)
51 Nm
52 Nm
Top Speed (km/h)
145 km/h
145 km/h
Weight (kg) — lower is better
110 kg
111 kg
Type
Motocross
Motocross
Horsepower
~56 hp @ 9,500 rpm (estimated for modern 2018+ spec)
~56 hp @ 9,000 rpm (estimate based on dyno testing of modern RM-Z450)
Torque
~51 Nm @ 7,500 rpm (estimated)
~52 Nm @ 7,500 rpm (estimate)
Top Speed
~145 km/h (estimated; dependent on gearing and terrain)
~145 km/h (estimate; top speed is not a primary design focus for motocross bikes)
Weight
110 kg (wet/curb weight)
111 kg (curb/wet weight — 2023 model)
Fuel
~5.5 L/100km (estimated; highly variable under race/off-road conditions)
~6.5 L/100km (estimate; varies greatly with riding intensity — motocross use is highly variable)
Fairing
No
No
Individual Reviews
Suzuki Rm-z 450
7.8/10
"Fast, rewarding, but only buy one with full service history."
Pros
+Explosive, confidence-inspiring power
+Excellent factory suspension platform
+Strong parts availability
Cons
−Valve maintenance costs add up
−Unforgiving for beginners
−Thirsty on fuel
Suzuki Rmz450
7.5/10
"Buy right and maintain it — ignore either and suffer."
Pros
+Sharp, confidence-inspiring handling
+Controllable power delivery
+Excellent suspension components
Cons
−Brutal to neglected engines
−Expensive valve maintenance intervals
−Hard seat stock
Top 10 Accessories
Picks that work on either bike.









