KTM 450 SX-F Factory - 2021 Specifications and Reviews

2024

2023

2021

General information
Category	Cross / motocross
Year	2021
Model	KTM 450 SX-F Factory
Engine and Transmission Specifications
Exhaust system	AkrapoviÄ Slip-On silencer
Driveline	5/8 x 1/4
Clutch	Wet, DDS multi-disc clutch, Brembo hydraulics
Transmission type	Chain (final drive)
Gearbox	4-speed
Cooling system	Liquid
Ignition	Keihin EMS
Fuel control	Single Overhead Cams (SOHC)
Fuel system	Injection
Bore x Stroke	95.0 x 63.4 mm (3.7 x 2.5 inches)
Power	63.0 Horsepower">HP (46.0 Kilowatt">kW))
Engine type	Single cylinder, four-stroke
Capacity:	449.3 ccm (27.42 cubic inches)

Brakes, suspension, Frame and wheels
Seat	Factory seat with Selle Dalla Valle logo
Wheels	KTM Factory wheels. Wire spoked.
Rear brakes	Single disc. Brake calipers on floating bearings
Diameter	260 mm (10.2 inches)
Front brakes	Single disc. Brake calipers on floating bearings
Rear wheel travel	300 mm (11.8 inches)
Rear Suspension	WP XACT Monoshock with linkage
Front wheel travel	310 mm (12.2 inches)
Front Suspension	WP XACT-USD, Ã˜ 48 mm
Rake (fork angle)	26.1°
Frame type	25CrMo4 steel central-tube
Physical measures and capacities
Fuel capacity	7.00 litres (1.85 US gallons)
Wheelbase	1485 mm (58.5 inches)
Ground clearance	370 mm (14.6 inches)
Seat height	950 mm (37.4 inches) If adjustable, lowest setting.
Power/weight ratio	0.6269 HP/kg
Dry weight	100.5 kg (221.6 pounds)

Other specs
Comments	Connectivity to a myKTM app
Electrical	Lightweight 495 g lithium-ion starter battery
Starter	Electric
Color options	Orange/white/black

Rider Reviews

Total comments: 1

MotorcycleDB Review

The 2021 KTM 450 SX-F Factory is a powerhouse of a motorcycle that offers top-of-the-line performance and cutting-edge technology. With its powerful 450cc engine, lightweight frame, and advanced suspension system, this bike is designed to dominate the track. The Factory edition also comes equipped with premium components such as a carbon fiber subframe, reworked cylinder head, and a high-end WP XACT suspension system, providing riders with ultimate control and precision. Whether you're a seasoned racer or a weekend warrior, the 2021 KTM 450 SX-F Factory delivers a thrilling riding experience that is sure to excite any motocross enthusiast. Overall, the 2021 KTM 450 SX-F Factory is a top-tier motorcycle that offers unparalleled performance and cutting-edge technology. With its powerful engine, lightweight construction, and premium components, this bike is designed to dominate the motocross track. Whether you're a competitive racer or simply enjoy hitting the trails on the weekends, the 2021 KTM 450 SX-F Factory is a top choice for riders who demand the best.