Specs compared

Kawasaki KX250 2026 vs Suzuki RM-Z450 2027

Motocross, stock specs side by side. Each value names the page it came from; a blank on either side stays blank.

Printed differently: engine, seat height and weight. The same on both: front tire and rear tire. Checked 28 Sep 2026 and 29 Sep 2026.

SpecKawasaki KX250 2026Suzuki RM-Z450 2027
EnginePrinted differently249cc 4T449cc 4T
Chain pitch Not yet verified520Manufacturer spec sheet (research)
Front tireSame80/100-21Manufacturer spec sheet (research)80/100-21 51MOwner's manual p. 6-40
Rear tireSame110/90-19Manufacturer spec sheet (research)110/90-19 62MOwner's manual p. 6-40
Fork travel305 mm (12.0 in)Manufacturer spec sheet (research) Not yet verified
Shock travel307 mm (12.1 in)Manufacturer spec sheet (research) Not yet verified
Engine oil capacity Not yet verified1050 ml (35.5 fl oz)Owner's manual p. 6-26
Coolant capacity Not yet verified1100 ml (37.2 fl oz)Owner's manual p. 3-6
Seat heightPrinted differently955 mm (37.6 in)Manufacturer spec sheet (research)960 mm (37.8 in)Manufacturer spec sheet (research)
WeightPrinted differently109.2 kg (241 lb)Manufacturer spec sheet (research)112 kg (247 lb)Manufacturer spec sheet (research)

Each value shows where it came from. The bike pages list the document, page and date checked. “Printed differently” only says the two documents print different figures; it is not a judgement of either bike.

Stock sizes at MotoSport. Kawasaki KX250: Front tires 80/100-21 · Rear tires 110/90-19. Suzuki RM-Z450: 520 chains · Front tires 80/100-21 · Rear tires 110/90-19. These are affiliate links: we may earn a commission, at no cost to you, and it never changes the specs. Affiliate disclosure.