Specs compared

Kawasaki KX250 2026 vs KTM 450 SX-F 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, rear tire, fork travel, shock travel, seat height and weight. The same on both: front tire. Checked 29 Sep 2026 and 16 Oct 2026.

SpecKawasaki KX250 2026KTM 450 SX-F 2027
EnginePrinted differently249cc 4T450cc 4T
Stock gearing Not yet verified13T / 51TOwner's manual p. 153
Final drive ratio Not yet verified3.92 : 1Calculated from the stock sprockets
Chain pitch Not yet verified520Owner's manual p. 153
Front tireSame80/100-21Manufacturer spec sheet (research)80/100-21 51M TTOwner's manual p. 154
Rear tirePrinted differently110/90-19Manufacturer spec sheet (research)120/80-19 62M TTOwner's manual p. 154
Fork travelPrinted differently305 mm (12.0 in)Manufacturer spec sheet (research)310 mm (12.2 in)Owner's manual p. 152
Shock travelPrinted differently307 mm (12.1 in)Manufacturer spec sheet (research)300 mm (11.8 in)Owner's manual p. 152
Engine oil capacity Not yet verified1200 ml (40.6 fl oz)Owner's manual p. 152
Coolant capacity Not yet verified950 ml (32.1 fl oz)Owner's manual p. 152
Seat heightPrinted differently955 mm (37.6 in)Manufacturer spec sheet (research)958 mm (37.7 in)Owner's manual p. 153
WeightPrinted differently109.2 kg (241 lb)Manufacturer spec sheet (research)103.2 kg (228 lb)Owner's manual p. 153

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. KTM 450 SX-F: 520 chains · Front tires 80/100-21 · Rear tires 120/80-19. These are affiliate links: we may earn a commission, at no cost to you, and it never changes the specs. Affiliate disclosure.