Back to Bike FinderYears: 2012 · 2009 · 2006
KTM 450 SX
2009ATV

KTM 450 SX

Key specifications

Engine
449 cc
Weight
165 kg
Fuel type
petrol
Fuel capacity
2.7 L
Transmission
5-speed
Seat height
31 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2009 KTM 450 SX, a fierce contender in the competitive world of off-road racing and motocross. Renowned for its exceptional handling and explosive power, the 450 SX is designed for riders who crave performance and agility. With its lightweight chassis and robust suspension, this motorcycle is not just a machine; it's a ticket to unbridled thrill and adventure. Whether you’re hitting the track or tackling rugged trails, the 450 SX stands out for its ability to adapt and excel in any environment. At the heart of the 2009 KTM 450 SX lies a potent single-cylinder, four-stroke engine with a displacement of 449 ccm. This powerhouse delivers impressive torque and a thrilling acceleration experience, thanks to a high compression ratio of 12.5:1. The engine is paired with a 5-speed gearbox, providing seamless power delivery across all terrains. The Keihin FCR-MX 41 carburetor ensures precise fuel delivery while the liquid cooling system keeps the engine temperature in check, allowing you to push the limits without fear of overheating. Riders will appreciate the lightweight frame and the WP suspension system, which features fully adjustable components, giving you the flexibility to tailor the bike to your riding style. With a ground clearance of 265 mm and a seat height of 795 mm, the 450 SX is both accessible and capable, making it perfect for both novice and experienced riders alike. The 2009 KTM 450 SX is packed with high-end features that enhance both performance and rider comfort. The electric starter adds convenience, ensuring quick restarts even in the heat of battle. Its chromoly frame not only contributes to the overall lightweight design but also promises unmatched durability. The WP fully adjustable front suspension, paired with a PDS mono-shock rear, provides an impressive 244 mm of front travel and 258 mm of rear travel, ensuring that rough terrain is easily absorbed. Coupled with powerful single disc brakes that provide strong stopping power, this motorcycle is designed to handle the demands of aggressive riding. **

Pros

  • Powerful Engine Performance: The 449 ccm engine offers explosive power and torque, perfect for tackling any terrain.
  • Adjustable Suspension: WP suspension system allows riders to fine-tune their setup for optimal handling and comfort.
  • Lightweight Design: At just 165 kg (363.8 pounds), the 450 SX is agile and easy to maneuver, enhancing your overall riding experience.

Cons

  • Limited Fuel Capacity: With a fuel tank capacity of only 10.30 litres (2.72 gallons), longer rides may require frequent refueling.
  • Seat Height: The 31.3-inch seat height may be challenging for shorter riders, potentially affecting overall comfort and control.
  • Maintenance Needs: As a high-performance machine, the 450 SX may require more frequent maintenance to keep it in top condition, especially for aggressive riders.

Technical details

Source specification data

Make
KTM
Model
450 SX
Category
ATV
Starter
Electric
Clutch
Wet multi-disc clutch, operated hydraulically
Gearbox
5-speed
Ignition
Kokusan digital
Fuel System
Carburettor. Keihin FCR-MX 41
Bore X Stroke
97.0 x 60.8 mm (3.8 x 2.4 inches)
Compression
12.5:1
Displacement
449.00 ccm (27.40 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Exhaust System
Aluminum SX Racing w / Spark Arrestor
Lubrication System
Dry
sump, pressure lubrication with 2
Eaton
pumps
Dry Weight
165.0 kg (363.8 pounds)
Seat Height
795 mm (31.3 inches) If adjustable, lowest setting.
Fuel Capacity
10.30 litres (2.72 gallons)
Ground Clearance
265 mm (10.4 inches)
Rear Tyre
18/10-8
Frame Type
Chromoly
Front Tyre
20/6-10
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
WP PDS mono-shock, fully adjustable, swingarm
Front Suspension
WP fully adjustable, twin A-arms
Rear Wheel Travel
258 mm (10.2 inches)
Front Wheel Travel
244 mm (9.6 inches)
Rear Brakes Diameter
200 mm (7.9 inches)
Front Brakes Diameter
180 mm (7.1 inches)