The KTM 450 SX-F motorcycle specifications include a 449.3 cc (27.42 cu in) engine, a 4-speed gearbox, and a listed weight of 104 kg (229.3 lb).
Key specifications
2007-2023Model years
449 ccDisplacement
104 kgDry weight
925 mmSeat height
8 LFuel tank
1,475 mmWheelbase
380 mmGround clearance
Model years covered
20072008200920102011201220132014201520162017201820192020202120222023
Year-specific specification changes
The 2007 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
Bore × stroke
2013202395.0 x 63.4 mm (3.7 x 2.5 inches)
Displacement
2023449.9 cc (27.45 cu in)
Dry weight
20082010104.6 kg (230.6 lb)
2011106.9 kg (235.7 lb)
2012107.8 kg (237.7 lb)
2013106.2 kg (234.1 lb)
2014107.3 kg (236.6 lb)
2015105.5 kg (232.6 lb)
2016100.4 kg (221.3 lb)
20172018100.2 kg (220.9 lb)
20192021100 kg (220.5 lb)
2022100.5 kg (221.6 lb)
2023102.6 kg (226.2 lb)
Frame
2009Central double-cradle-type 25 CrMo4. Aluminium subframe.
2010Central double-cradle-type 25CrMo4
2011Central double-cradle-type 25CrMo4. Aluminium subframe.
2012Central tube frame made of chrome molybdenum steel tubing
20132015Central tubular frame made from chrome molybdenum steel tubes
2016202025CrMo4 steel central-tube frame
2021202225CrMo4 steel central-tube
2023Central double-cradle-type 25CrMo4 steel
Front brakes
2008Single disc. Floating discs.
2013Single disc. Four-piston calipers.
20142023Single disc. Brake calipers on floating bearings
Front suspension
20102011WP-USD fork
20122015WP Suspension Up Side Down 4860 MXMA CC
20162019WP-USD, AER 48, Ø 48 mm
20202023WP XACT-USD, Ø 48 mm
Front tire
20231.6-21
Fuel system
20102011Carburettor. Keihin FCR MX 41
20172023Injection
Gearbox
20086-speed
201020125-speed
20175-speed
202220235-speed
Rear brakes
2008Single disc. Floating disc.
2013Single disc. Two-piston calipers.
20142023Single disc. Brake calipers on floating bearings
Rear suspension
20092011WP PDS shock absorber
20122015WP Suspension 5018 BAVP DCC
20162019WP shock absorber with linkage
20202023WP XACT Monoshock with linkage
Rear tire
20232.15-19
Wheelbase
201120151,495 mm (58.9 inches)
201620231,485 mm (58.5 inches)
Clutch
20102011Wet mDouble disk clutch, operated hydraulically
2012Wet mDouble disk clutch / hydraulically operated
2013Multidisc clutch in oil bath/hydraulically activated
20142015DDS Multidisc clutch in oil bath/hydraulically activated
20162023Wet, DDS multi-disc clutch, Brembo hydraulics
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 449.3 cc (27.42 cu in) |
| Bore × stroke | 97.0 x 60.8 mm (3.8 x 2.4 inches) |
| Compression ratio | 12.5:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Carburettor. Keihin MX FCR 41 |
| Fuel control | Overhead Cams (OHC) |
| Ignition | Kokusan digital DC-CDI |
| Starter | Kick |
| Lubrication | Pressure lubrication |
Transmission and drivetrain
| Gearbox | 4-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Wet multi-disc clutch, operated hydraulically |
Chassis and suspension
| Frame | Central double-cradle-type 25 CrMo4 |
|---|---|
| Front suspension | WP USD |
| Rear suspension | WP Monoshock PDS |
| Front wheel travel | 115 mm (4.5 inches) |
| Rear wheel travel | 185 mm (7.3 inches) |
| Rake | 26.5° |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 80/100-21 |
| Rear tire | 110/90-19 |
Dimensions and weight
| Dry weight | 104 kg (229.3 lb) |
|---|---|
| Seat height | 925 mm (36.4 inches) |
| Wheelbase | 1,475 mm (58.1 inches) |
| Ground clearance | 380 mm (15.0 inches) |
Fuel and emissions
| Fuel capacity | 8.00 L (2.11 US gal) |
|---|
Other specifications
| Exhaust system | Aluminium |
|---|
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.