Specs compared

Triumph TF 450-X 2026
vs Yamaha YZ125 2027

SpecTriumph TF 450-X 2026Yamaha YZ125 2027
Years20262027
Engine450cc 4T125cc 2T
Stock gearing13T / 49TManufacturer spec sheet (research)13T / 49TOwner's manual p. 2-3
Final drive ratio3.77 : 1Calculated from the stock sprockets3.769 : 1Owner's manual p. 2-3
Fork travel310 mm (12.2 in)Manufacturer spec sheet (research)300 mm (11.8 in)Owner's manual p. 2-6
Seat height960 mm (37.8 in)Manufacturer spec sheet (research)980 mm (38.6 in)Owner's manual p. 2-1
Weight108.3 kg (239 lb)Manufacturer spec sheet (research)96 kg (212 lb)Owner's manual p. 2-1

Each value shows where it came from. The bike pages list the document, page and date checked.