Specs compared

GasGas MC 450F 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: stock gearing, rear tire, shock travel, seat height and weight. The same on both: engine, front tire and fork travel. Checked 16 Oct 2026.

SpecGasGas MC 450F 2027Triumph TF 450-X 2026
EngineSame450cc 4T450cc 4T
Stock gearingPrinted differently13T / 51TOwner's manual p. 13513T / 49TManufacturer spec sheet (research)
Final drive ratio3.92 : 1Calculated from the stock sprockets3.77 : 1Calculated from the stock sprockets
Chain pitch520Owner's manual p. 135 Not yet verified
Front tireSame80/100-21 M/C 51M TTOwner's manual p. 13680/100-21Manufacturer spec sheet (research)
Rear tirePrinted differently100/90-19 M/C 57M TTOwner's manual p. 136110/90-19Manufacturer spec sheet (research)
Fork travelSame310 mm (12.2 in)Owner's manual p. 135310 mm (12.2 in)Manufacturer spec sheet (research)
Shock travelPrinted differently300 mm (11.8 in)Owner's manual p. 135305 mm (12.0 in)Manufacturer spec sheet (research)
Engine oil capacity1200 ml (40.6 fl oz)Owner's manual p. 135 Not yet verified
Coolant capacity950 ml (32.1 fl oz)Owner's manual p. 135 Not yet verified
Seat heightPrinted differently956 mm (37.6 in)Owner's manual p. 135960 mm (37.8 in)Manufacturer spec sheet (research)
WeightPrinted differently103.6 kg (228 lb)Owner's manual p. 136108.3 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. GasGas MC 450F: 520 chains · Front tires 80/100-21 · Rear tires 100/90-19. 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.