Ktm Sx 450 vs Ktm Sx-f 450
Side-by-side comparison for used motorcycle buyers
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Ktm Sx 450
Ktm Sx-f 450
Horsepower (hp)
63 hp
63 hp
Torque (Nm)
54 Nm
54 Nm
Top Speed (km/h)
145 km/h
175 km/h
Weight (kg) — lower is better
106 kg
101 kg
Type
Motocross
Motocross
Horsepower
~63 hp @ 9,500 rpm (estimated for modern 2020+ generation)
~63 hp @ 9,000 rpm (estimated for recent 2022-2024 models; KTM does not officially publish dyno figures)
Torque
~54 Nm @ 7,000 rpm (estimated for modern 2020+ generation)
~54 Nm @ 7,000 rpm (estimated for recent models; note: official figures not published by KTM)
Top Speed
~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure)
~175 km/h (estimated; note: varies with gearing and terrain)
Weight
~106 kg (wet/curb weight, varies slightly by model year)
101 kg (wet/curb weight — 2023 model)
Fuel
~7–9 L/100km (estimated; highly variable depending on riding intensity — note: motocross bikes are not typically measured by fuel economy)
~6-9 L/100km (estimated real-world; varies heavily with riding intensity — note: no official figure provided by KTM for off-road race use)
Fairing
No
No
Individual Reviews
Ktm Sx 450
8.5/10
"Extraordinary machine that ruthlessly punishes neglectful owners and rewards disciplined ones."
Pros
+Best-in-class power delivery
+Exceptional factory-grade suspension
+Lightweight chromoly frame
Cons
−Brutal mandatory maintenance schedule
−Unforgiving for intermediate riders
−Expensive genuine KTM parts
Ktm Sx-f 450
8.5/10
"A brilliant machine that demands respect, research, and deep pockets."
Pros
+Best-in-class power delivery
+WP suspension genuinely race-spec
+Excellent parts availability
Cons
−Maintenance intervals brutally short
−Expensive rebuild costs
−Unforgiving for beginners