Kawasaki KX™ 450X vs Suzuki RM-Z 450 (2026)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Kawasaki KX™ 450Xstacks up against the Suzuki RM-Z 450. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecKawasaki KX™ 450XSuzuki RM-Z 450
Model year20262026
Price$10,699$9,399
Engine449 cc449 cc
Weight109 kg112 kg
Seat height950 mm960 mm
Fuel capacity6.0 L6.0 L
Fuel typepetrolpetrol
TransmissionManual, 5 speed, ChainManual, 5 speed, Chain
Front brakesDiscHydraulic Disc
Rear brakesDiscHydraulic Disc
TiresDunlop® Geomax AT18F: 80/100-21 51M / Dunlop® Geomax AT18 120/80-18 65MBridgestone® Battlecross X30 80/100 R21 M/C 51M / Bridgestone® Battlecross X30 110/90 R19 M/C 62M

Kawasaki KX™ 450X vs Suzuki RM-Z 450 — which should you buy?

Picking between the Kawasaki KX™ 450X and the Suzuki RM-Z 450 usually comes down to the numbers you care about most. On paper, the Kawasaki KX™ 450X brings its published horsepower in a 109 kg package, while the Suzuki RM-Z 450 counters with its own power figure at 112 kg. On price, the Suzuki RM-Z 450 has the lower MSRP.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: