Specs compared

KTM 250 SX-F 2025
vs Yamaha YZ125 2027

SpecKTM 250 SX-F 2025Yamaha YZ125 2027
Years20252027
Engine250cc 4T125cc 2T
Stock gearing14T / 51TOwner's manual p. 14813T / 49TOwner's manual p. 2-3
Final drive ratio3.64 : 1Calculated from the stock sprockets3.769 : 1Owner's manual p. 2-3
Fork travel310 mm (12.2 in)Owner's manual p. 147300 mm (11.8 in)Owner's manual p. 2-6
Seat height958 mm (37.7 in)Owner's manual p. 148980 mm (38.6 in)Owner's manual p. 2-1
Weight101 kg (223 lb)Owner's manual p. 14896 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.