Specs compared

KTM 350 SX-F 2027 vs Triumph TF 450-X 2026

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

Printed differently: engine, stock gearing, shock travel, seat height and weight. The same on both: front tire, rear tire and fork travel. Checked 16 Oct 2026.

SpecKTM 350 SX-F 2027Triumph TF 450-X 2026
EnginePrinted differently350cc 4T450cc 4T
Stock gearingPrinted differently14T / 52TOwner's manual p. 15113T / 49TManufacturer spec sheet (research)
Final drive ratio3.71 : 1Calculated from the stock sprockets3.77 : 1Calculated from the stock sprockets
Chain pitch520Owner's manual p. 151 Not yet verified
Front tireSame80/100-21 51M TTOwner's manual p. 15180/100-21Manufacturer spec sheet (research)
Rear tireSame110/90-19 62M TTOwner's manual p. 151110/90-19Manufacturer spec sheet (research)
Fork travelSame310 mm (12.2 in)Owner's manual p. 150310 mm (12.2 in)Manufacturer spec sheet (research)
Shock travelPrinted differently300 mm (11.8 in)Owner's manual p. 150305 mm (12.0 in)Manufacturer spec sheet (research)
Engine oil capacity1000 ml (33.8 fl oz)Owner's manual p. 150 Not yet verified
Coolant capacity950 ml (32.1 fl oz)Owner's manual p. 150 Not yet verified
Seat heightPrinted differently958 mm (37.7 in)Owner's manual p. 151960 mm (37.8 in)Manufacturer spec sheet (research)
WeightPrinted differently102.4 kg (226 lb)Owner's manual p. 151108.3 kg (239 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. KTM 350 SX-F: 520 chains · Front tires 80/100-21 · Rear tires 110/90-19. Triumph TF 450-X: 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.