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All Bikes/Compare/Ktm Sx 450 vs Fantic Xmf 125

Ktm Sx 450 vs Fantic Xmf 125

Side-by-side comparison for used motorcycle buyers

Ktm Sx 450 vs Fantic Xmf 125. Ktm Sx 450: ~63 hp @ 9,500 rpm (estimated for modern 2020+ generation) hp, ~106 kg (wet/curb weight, varies slightly by model year) weight, top speed ~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure), Motoryk rating 8.5/10. Fantic Xmf 125: ~15 hp @ 10,000 rpm (Note: limited to 11 kW/15 hp per A1 regulations) hp, ~148 kg (wet/curb weight, estimated) weight, top speed ~95 km/h (estimated, governed for A1 license compliance), Motoryk rating 7.8/10.

Performance at a Glance

Green = winner per metric · Bars are relative to the higher value

Ktm Sx 450 Fantic Xmf 125
Horsepower (hp)
63 hp
15 hp
Torque (Nm)
54 Nm
12 Nm
Top Speed (km/h)
145 km/h
95 km/h
Weight (kg) — lower is better
106 kg
148 kg
Type
Motocross
Motocross
Horsepower
~63 hp @ 9,500 rpm (estimated for modern 2020+ generation)
~15 hp @ 10,000 rpm (Note: limited to 11 kW/15 hp per A1 regulations)
Torque
~54 Nm @ 7,000 rpm (estimated for modern 2020+ generation)
~12 Nm @ 8,000 rpm (estimated)
Top Speed
~145 km/h (estimated; note: motocross bikes are not optimized for top speed, this is an approximate real-world figure)
~95 km/h (estimated, governed for A1 license compliance)
Weight
~106 kg (wet/curb weight, varies slightly by model year)
~148 kg (wet/curb weight, estimated)
Fuel
~7–9 L/100km (estimated; highly variable depending on riding intensity — note: motocross bikes are not typically measured by fuel economy)
~2.5 L/100km or ~40 km/L (estimated real-world average)
Fairing
No
No

Individual Reviews

Ktm Sx 450
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
Fantic Xmf 125
Fantic Xmf 125
7.8/10

"A proper 125 that rewards riders who actually want to ride."

Pros
+KTM engine, solid parts supply
+Genuinely capable suspension setup
+Premium Italian build quality
Cons
Flat low-RPM power delivery
Limited dealership network nationwide
Premium price even used

Top 10 Accessories

Picks that work on either bike.

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Akrapovic Racing Line Full Exhaust KTM 450 SX-F
Akrapovič · Exhaust System
Akrapovic Racing Line Full Exhaust KTM 450 SX-F
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Twin Air Foam Air Filter KTM 450 SX-F
Twin Air · Air Filter
Twin Air Foam Air Filter KTM 450 SX-F
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Acerbis X-Ultimate Handguards KTM Orange
Acerbis · Hand Guards
Acerbis X-Ultimate Handguards KTM Orange
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Renthal Ultralight Sprocket & Chain Kit KTM 450 SX
Renthal · Chain & Sprocket
Renthal Ultralight Sprocket & Chain Kit KTM 450 SX
View on Amazon →
Renthal Dual Compound Waffle Grips Motocross
Renthal · Grips
Renthal Dual Compound Waffle Grips Motocross
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Full-Face Motorcycle Helmet
Helmet
Full-Face Motorcycle Helmet
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Riding Gloves
Gloves
Riding Gloves
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Mesh Riding Jacket
Jacket
Mesh Riding Jacket
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Riding Boots
Boots
Riding Boots
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Chain Lube & Cleaner Kit
Chain Lube
Chain Lube & Cleaner Kit
View on Amazon →
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