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All Bikes/Compare/Yamaha Yz450f vs Suzuki Rm-z250

Yamaha Yz450f vs Suzuki Rm-z250

Side-by-side comparison for used motorcycle buyers

Yamaha Yz450f vs Suzuki Rm-z250. Yamaha Yz450f: Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end) hp, 110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier) weight, top speed Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure), Motoryk rating 8.5/10. Suzuki Rm-z250: ~40 hp @ 13,000 rpm (Note: estimated; Suzuki does not officially publish power figures) hp, 104 kg (wet/curb weight, based on 2019-2023 models) weight, top speed ~120 km/h (Note: estimated real-world; not designed for top speed but for off-road performance), Motoryk rating 7.5/10.

Performance at a Glance

Green = winner per metric · Bars are relative to the higher value

Yamaha Yz450f Suzuki Rm-z250
Horsepower (hp)
60 hp
40 hp
Torque (Nm)
53 Nm
26 Nm
Top Speed (km/h)
145 km/h
120 km/h
Weight (kg) — lower is better
110 kg
104 kg
Type
Motocross
Motocross
Horsepower
Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end)
~40 hp @ 13,000 rpm (Note: estimated; Suzuki does not officially publish power figures)
Torque
Approximately 53–55 Nm @ 8,000 rpm (estimate; Yamaha does not officially publish torque figures for this model)
~26 Nm @ 11,500 rpm (Note: estimated; official figures not published by Suzuki)
Top Speed
Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure)
~120 km/h (Note: estimated real-world; not designed for top speed but for off-road performance)
Weight
110 kg (curb/wet weight, approximate for 2018–2023 models; earlier models slightly heavier)
104 kg (wet/curb weight, based on 2019-2023 models)
Fuel
Estimated 6–8 L/100km under typical motocross/off-road use (note: highly variable depending on riding intensity; no official road consumption figure exists for this competition-focused bike)
~6.5 L/100km (Note: estimated; motocross bikes vary greatly by riding intensity)
Fairing
No
No

Individual Reviews

Yamaha Yz450f
Yamaha Yz450f
8.5/10

"Brilliant but unforgiving — buy smart or get burned fast."

Pros
+Exceptional power-to-weight ratio
+Class-leading chassis balance
+Strong aftermarket parts availability
Cons
Maintenance intervals brutally short
Punishing for beginner riders
Suspension needs frequent rebuilding
Suzuki Rm-z250
Suzuki Rm-z250
7.5/10

"A rewarding machine — if you buy one that's been loved."

Pros
+Best-in-class chassis handling
+Strong, usable mid-range power
+Premium Showa suspension components
Cons
Frequently neglected by owners
Expensive to maintain properly
Tight valve adjustment intervals

Top 10 Accessories

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