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Reviews/ Suzuki/ Rm-z 450
WATCH REVIEW
7.8/10 Motocross

Suzuki Rm-z 450 Review

"Fast, rewarding, but only buy one with full service history."

Experienced motocross riders wanting competitive track performance $3,500-$6,500 used 2010-2022
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Key Specs

speed
Top Speed
~145 km/h (estimated; dependent on gearing and terrain)
bolt
Power
~56 hp
@ 9,500 rpm (estimated for modern 2018+ spec)
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Torque
~51 Nm
@ 7,500 rpm (estimated)
local_gas_station
Fuel Economy
18.2 km/L
43 mpg ยท ~5.5 L/100km (estimated; highly variable under race/off-road conditions)
build
Service Every
Oil change every 2-3 hours of racing use
scale
Weight
110 kg
(wet/curb weight)
settings
Engine
449cc liquid-cooled DOHC 4-valve single-cylinder
height
Seat Height
955 mm
cog
Transmission
5-speed
favorite
Engine Lifespan
Top-end rebuild typically required every 15-20 hours of racing use
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Used Buyer Review

The RMZ450 is a proper weapon โ€” Suzuki built something genuinely fast here, but it demands respect and regular maintenance. If you're looking at a used one, the first thing to check is valve clearances. These motors are notoriously tight on valves and previous owners frequently skip that service. A neglected top end will cost you serious money, so budget accordingly or walk away. Riding it though? Once it's fresh, the thing absolutely rips. The power delivery is aggressive and linear, and the chassis feels planted through fast, sweeping corners. The suspension is well-sorted from factory, though it leans toward heavier, faster riders. Lighter guys will want to respring it. Ergonomics are competitive-spec, meaning it's not forgiving โ€” this bike wants to be ridden hard and precisely. Buy one with documented maintenance, ideally from a club racer who knew what they were doing. Avoid flip bikes from guys who 'barely rode it' โ€” that usually means it sat neglected in a garage collecting problems.

Pros

+Explosive, confidence-inspiring power
+Excellent factory suspension platform
+Strong parts availability
+Solid chassis feedback
+Competitive lap times instantly

Cons

-Valve maintenance costs add up
-Unforgiving for beginners
-Thirsty on fuel
-Hard starting when neglected
warning
Avoid if

You skip scheduled maintenance or ride infrequently

description View full specs, facts & rivals for Suzuki Rm-z 450 โ†’

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