2023 KTM 450 SX-F vs 2023 Yamaha YZ450FX

Side-by-side specs. Differences are highlighted. Blank = not yet verified for that year-model (we don’t guess).

Spec2023 KTM 450 SX-F2023 Yamaha YZ450FX
Class450cc 4-stroke450cc 4-stroke
Displacement450cc
Bore × stroke97 × 60.9 mm
Cooling
InductionPistons ported with a single, large diameter intake valve and dual exhaust valves per cylinder head.Mikuni fuel injection, 44mm
Power valve
StarterElectric starter
Transmission6-speed5-speed
Front suspension43 mm inverted Ohlins forkKYB spring-type fork with speed sensitive damping; fully adjustable, 12.2-in travel
Front travel120 in12.2 in
Rear travel150 in12.5 in
Front brake310mm270mm
Rear brake280mm240mm
Front wheel
Rear wheel
Seat height765 in37.6 in
Wheelbase52.5 in58.3 in
Weight194 lb (Dry weight)254 lb (wet weight)
Fuel capacity1.8 gal2.2 gal
MSRP$10,799

Highlighted (blue) rows differ between the two. Verified manufacturer data; see each bike’s page for sources. Torque/fluid specs are on the individual pages (service-manual only).