Yamaha Yz 450 F vs Suzuki Rm-z 450
Side-by-side comparison for used motorcycle buyers
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Yamaha Yz 450 F
Suzuki Rm-z 450
Horsepower (hp)
62 hp
56 hp
Torque (Nm)
52 Nm
51 Nm
Top Speed (km/h)
145 km/h
145 km/h
Weight (kg) — lower is better
110 kg
110 kg
Type
Motocross
Motocross
Horsepower
~62 hp @ 9,500 rpm (note: figure based on modern 2020+ models; earlier models ranged 55-60 hp)
~56 hp @ 9,500 rpm (estimated for modern 2018+ spec)
Torque
~52 Nm @ 7,500 rpm (note: estimated based on published dyno data for recent models)
~51 Nm @ 7,500 rpm (estimated)
Top Speed
~145 km/h (note: estimated under optimal conditions on a straight; varies by rider and terrain)
~145 km/h (estimated; dependent on gearing and terrain)
Weight
110 kg (wet/curb weight, based on 2020+ models)
110 kg (wet/curb weight)
Fuel
Estimate: ~6-8 L/100km under typical motocross/off-road riding conditions (note: highly variable depending on riding intensity; not designed for road use)
~5.5 L/100km (estimated; highly variable under race/off-road conditions)
Fairing
No
No
Individual Reviews
Yamaha Yz 450 F
8.5/10
"An unforgiving elite machine that rewards experienced, mechanically-aware riders only."
Pros
+Bulletproof engine when maintained
+Reverse cylinder improves balance
+Electric start on later models
Cons
−Brutal for inexperienced riders
−Maintenance intervals are short
−Suspension wears quickly hard use
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
Top 10 Accessories
Picks that work on either bike.
