Specs compared

KTM 250 SX-F 2025
vs Yamaha YZ450F 2027

SpecKTM 250 SX-F 2025Yamaha YZ450F 2027
Years20252027
Engine250cc 4T450cc 4T
Stock gearing14T / 51TOwner's manual p. 14813T / 51TOwner's manual p. 2-4
Final drive ratio3.64 : 1Calculated from the stock sprockets3.923 : 1Owner's manual p. 2-4
Fork travel310 mm (12.2 in)Owner's manual p. 147310 mm (12.2 in)Owner's manual p. 2-6
Seat height958 mm (37.7 in)Owner's manual p. 148965 mm (38.0 in)Owner's manual p. 2-1
Weight101 kg (223 lb)Owner's manual p. 148109 kg (240 lb)Owner's manual p. 2-1

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