KTM 450 SX-F Factory Specs (Top Speed | Horsepower | Weight)

The KTM 450 SX-F Factory motorcycle specifications include a 449.3 cc (27.42 cu in) engine, a 4-speed gearbox, and a listed weight of 100.5 kg (221.6 lb).

Key specifications

2021, 2023Model years
449 ccDisplacement
100.5 kgDry weight
950 mmSeat height
7 LFuel tank
1,485 mmWheelbase
370 mmGround clearance
Model years covered
20212023
Year-specific specification changes

The 2021 model is treated as the standard specification. Only later model years with a different supplied value are shown below.

Displacement
2023449.9 cc (27.45 cu in)
Dry weight
2023103.5 kg (228.2 lb)
Frame
2023Central double-cradle-type 25CrMo4 steel
Gearbox
20235-speed
Electrical
2023Lightweight 495 g 2Ah lithium-ion starter battery
Exhaust system
2023Akrapovič ´slip-on line´
Fuel capacity
20237.20 L (1.90 US gal)
Ground clearance
2023343 mm (13.5 inches)
Power/weight ratio
20230.6087 hp/kg
Seat height
2023958 mm (37.7 inches)
Wheels
2023CNC machined hubs. Excel rims. Wire spoked.

How the KTM 450 SX-F Factory compares

This compares the motorcycle with all KTM models in this specifications database. The blue marker is this model and the grey line is the KTM database average.

Displacement449 cc
Low 49 ccAverage 444 ccHigh 1,301 cc

Very close to the KTM database average. Around the 62nd percentile across KTM models.

Seat height950 mm
Low 607 mmAverage 895 mmHigh 992 mm

About 6% taller than the KTM database average. Around the 66th percentile across KTM models.

Fuel capacity7 L
Low 2 LAverage 10.6 LHigh 23 L

About 34% smaller than the KTM database average. Around the 17th percentile across KTM models.

This model KTM database average

KTM database percentile rankings

Percentiles show where this motorcycle sits across the KTM specifications database. They are descriptive database rankings, not performance ratings.

Displacement62nd

449 cc — larger displacement than about 62% of KTM models.

Seat height66th

950 mm — taller than about 66% of KTM models.

Fuel capacity17th

7 L — larger than about 17% of KTM fuel tanks in this database.

Dimensions compared with KTM average

Each measurement is compared with the average value across KTM models where that dimension is available.

Wheelbase1,485 mm
This bike

1,485

KTM avg

1,436

3% above average.

Seat height950 mm
This bike

950

KTM avg

895

6% above average.

Ground clearance370 mm
This bike

370

KTM avg

304

22% above average.

Mechanical overview

Engine layout snapshot

Single cylinder, four-stroke • 449 cc • Liquid cooled
Chassis snapshot

Wheelbase 1,485 mmSeat 950 mmClearance 370 mm
4-speed • Chain (final drive)

Additional useful specifications

Bore/stroke ratio 1.50:1 (Oversquare)

Engine specifications

Engine type Single cylinder, four-stroke
Displacement 449.3 cc (27.42 cu in)
Bore × stroke 95.0 x 63.4 mm (3.7 x 2.5 inches)
Cooling system Liquid
Fuel system Injection
Fuel control Single Overhead Cams (SOHC)
Ignition Keihin EMS
Starter Electric

Transmission and drivetrain

Gearbox 4-speed
Final drive Chain (final drive)
Clutch Wet, DDS multi-disc clutch, Brembo hydraulics

Chassis and suspension

Frame 25CrMo4 steel central-tube
Front suspension WP XACT-USD, Ø 48 mm
Rear suspension WP XACT Monoshock with linkage
Front wheel travel 310 mm (12.2 inches)
Rear wheel travel 300 mm (11.8 inches)
Rake 26.1°

Brakes, wheels and tires

Front brakes Single disc. Brake calipers on floating bearings
Rear brakes Single disc. Brake calipers on floating bearings
Wheels KTM Factory wheels. Wire spoked.

Dimensions and weight

Dry weight 100.5 kg (221.6 lb)
Seat height 950 mm (37.4 inches)
Wheelbase 1,485 mm (58.5 inches)
Ground clearance 370 mm (14.6 inches)

Fuel and emissions

Fuel capacity 7.00 L (1.85 US gal)

Performance

Power/weight ratio 0.6269 hp/kg

Electrical and instruments

Electrical Lightweight 495 g lithium-ion starter battery

Other specifications

Color options Orange/white/black
Seat Factory seat with Selle Dalla Valle logo
Exhaust system Akrapovič Slip-On silencer
Comments Connectivity to a myKTM app

Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from KTM models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official KTM information before relying on them. Visit the official KTM website.