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KTM 250 SX
2005Off-road

KTM 250 SX

Key specifications

Engine
249 cc
Weight
98 kg
Fuel type
petrol
Fuel capacity
2.0 L
Transmission
5-speed
Seat height
36 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2005 KTM 250 SX, a cross-motocross motorcycle that stands as a testament to KTM's commitment to performance and precision engineering. Renowned for its agility and ability to tackle challenging terrains, the 250 SX is designed for competitive riders who demand reliability and power. With its lightweight frame and cutting-edge technology, this bike is perfect for both seasoned racers and those looking to elevate their off-road experience. It’s a machine that not only thrives on the track but also captures the hearts of motocross enthusiasts seeking an adrenaline-fueled ride. At the heart of the KTM 250 SX is a robust 249cc single-cylinder, two-stroke engine that delivers exhilarating performance. Thanks to its precise bore and stroke dimensions of 66.4 x 72.0 mm, the engine provides a thrilling rush of power. The liquid-cooled design ensures optimal performance under pressure, while the Keihin PWK 38 S AG carburetor guarantees efficient fuel delivery, allowing for quick throttle response and smooth acceleration. Coupled with a 5-speed gearbox and a hydraulically operated wet multi-disc clutch, this motorcycle offers seamless shifting and control, making it a thrilling ride on any motocross track. With a lightweight frame weighing in at just 97.7 kg (215.4 pounds), the 250 SX is incredibly nimble, allowing riders to maneuver with confidence and precision. The 2005 KTM 250 SX is equipped with high-end features that enhance its performance and rider experience. The chromium molybdenum frame is not only durable but also contributes to the bike's excellent handling characteristics, while the WP-USD 48 mm front suspension and WP-PDS rear shock absorber provide outstanding stability and comfort over rough terrain. With a front brake diameter of 216 mm and a rear brake diameter of 260 mm, the braking system offers powerful stopping capability, essential for aggressive riding. The bike's impressive ground clearance of 385 mm (15.2 inches) allows riders to tackle obstacles with ease, ensuring that no trail is too challenging. **

Pros

  • Lightweight and agile: Weighing just 97.7 kg, the 250 SX is incredibly nimble, providing excellent handling on the track.
  • Powerful two-stroke engine: The 249cc engine delivers thrilling acceleration and responsiveness, ideal for competitive racing.
  • High-quality suspension: The WP suspension components enhance comfort and control, allowing riders to tackle rough terrains with confidence.

Cons

  • Kick starter only: While some riders appreciate the simplicity, the absence of an electric start can be a drawback for others.
  • Height may be challenging: With a seat height of 925 mm (36.4 inches), it may not be ideal for shorter riders.
  • Limited fuel capacity: The 7.50 liters (1.98 gallons) fuel tank may require more frequent refueling during long rides or races.

Technical details

Source specification data

Make
KTM
Model
250 SX
Category
Cross-motocross
Starter
Kick
Clutch
Wet multi-disc clutch, operated hydraulically
Gearbox
5-speed
Ignition
Kokusan digital 2K-1
Fuel System
Carburettor. Keihin PWK 38 S AG
Bore X Stroke
66.4 x 72.0 mm (2.6 x 2.8 inches)
Displacement
249.00 ccm (15.19 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, two-stroke
Lubrication System
Mixture oil lubrication 1:60
Transmission Type Final Drive
Chain
Dry Weight
97.7 kg (215.4 pounds)
Seat Height
925 mm (36.4 inches) If adjustable, lowest setting.
Fuel Capacity
7.50 litres (1.98 gallons)
Ground Clearance
385 mm (15.2 inches)
Rake
27.0°
Trail
116 mm (4.6 inches)
Frame Type
chromium molybdenum
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
WP-PDS shock absorber
Front Suspension
WP-USD 48 mm (1.89´)
Rear Wheel Travel
335 mm (13.2 inches)
Rear Brakes Diameter
260 mm (10.2 inches)
Front Brakes Diameter
216 mm (8.5 inches)