KTM 450 SX-F - Most powerful motocross motorcycle from KTM. The engine is not only powerful, it is also the quietest in the class. The WP suspension components are improved every year.
The KTM motorcycle is the lightest in the 450 class. It is equipped with advanced components such as an electric starter, Brembo braking system and a hydraulic clutch. All these qualities make the SX-F an excellent cross-country bike.
The lineup:
Main competitors:
Engine
As of 2019, the KTM 450 SX-F engine features a more compact cylinder head. It is 15mm lower and 500g lighter than the 2018 model. The motocross bike is equipped with a Pankl transmission, 44mm throttle body, new ECU cards, lithium-ion starting battery, modified air intake. In addition, the traction control function has been improved and the launch control has been reconfigured. The KTM 450 SX-F delivers power smoothly and predictably. The SX-F has two modes of operation, which are activated by a dedicated switch on the left side of the steering wheel.
Suspension
The SX and XC come with a WP XACT fork and rear shock, while the W and EXC come with XPLOR suspension. In particular, the Factory Edition fork has calibrated pistons for tighter mating, which makes it possible to increase the pressure in the forks. The rear shock has a preload adjuster for more precise adjustment. The traverses resemble the Xtrig traverse structure, but the aluminum profile is much more rounded and more milled in the center sections.
Photos
Specifications
Specifications KTM 450 SX-F:
| Model | KTM 450 SX-F |
|---|---|
| Motorcycle type | Cross |
| Release year | 2006- |
| Frame | 25CrMo4 |
| Engine type | 1-cylinder, 4-stroke, in-line |
| Working volume | 449.9 cm³ |
| Bore / Stroke | 95 x 63.4 mm |
| Compression ratio | 12.5: 1 |
| Cooling | liquid |
| Number of valves per cylinder | SOHC, 4 valves per cylinder |
| Fuel supply system | Keihin EFI |
| Ignition type | Keihin EMS |
| Maximum power | 62.00 h.p.
63.00 h.p. (2021+) |
| Maximum torque | 50.00 Nm |
| Gearbox | 5-speed |
| Clutch | Wet multi-disc DDS, hydraulically operated by Brembo |
| Drive type | chain |
| Front tire size | 80/100 R21 |
| Rear tire size | 110/90 R19 |
| Front brakes | 260 mm |
| Rear brakes | 220 mm |
| Front suspension | WP Ø48mm stroke - 310mm |
| Rear suspension | WP monoshock, 300mm travel |
| Minimum ground clearance | 370 mm |
| Saddle height | 950 mm |
| Fuel tank capacity | 7 l |
| Motorcycle weight (dry) | 100 kg |
| Dynamometric test |  |
KTM Motorcycles
| KTM | ||
|---|---|---|
| Off-road | 85-250 см³ | Freeride 250 F · 250 EXC · 250 EXC-F · 250 SX-F |
| 251-400 см³ | Freeride 350 F · 300 EXC · 350 EXC-F · 350 SX-F | |
| 401-750 см³ | 450 EXC-F · 450 SX-F · 500 EXC-F · 690 Enduro | |
| Supermoto | 401-750 см³ | 690 SMC R · 690 Supermoto |
Documentation