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KTM 150 SX
2018Off-road

KTM 150 SX

Key specifications

Engine
144 cc
Weight
87 kg
Fuel type
petrol
Fuel capacity
1.9 L
Transmission
6-speed
Seat height
38 mm
Front brakes
Single disc. Four-piston calipers.
Rear brakes
Single disc. Two-piston calipers.

Overview

Introducing the 2018 KTM 150 SX, a born competitor in the fiercely contested world of cross-motocross motorcycles. Designed for riders who seek a lightweight and nimble machine, the 150 SX is the ultimate bridge between the 125 and 250 classes. This bike is tailored for aspiring racers and seasoned veterans alike, offering a power-to-weight ratio that sets the stage for thrilling performance on the track. With its striking orange, white, and black color scheme, the 150 SX not only looks the part but also embodies the KTM racing spirit that has made the brand synonymous with victory. At the heart of the 150 SX lies a potent 143.90 ccm single-cylinder, two-stroke engine, designed to deliver exhilarating performance with every twist of the throttle. The Mikuni TMX carburetor ensures precise fuel delivery, while the Kokusan EMS ignition system sparks life into this spirited powerplant. The 150 SX’s 6-speed gearbox allows for seamless gear transitions, giving riders the flexibility to tackle a variety of terrains with ease. Whether you're launching off the starting gate or navigating tight corners, the liquid-cooled engine provides a rush of power that’s both responsive and exhilarating, making every ride an adrenaline-filled adventure. KTM has equipped the 150 SX with a robust chassis and advanced suspension technology, ensuring that it handles the rigors of motocross with confidence and precision. The 25CrMo4 steel central-tube frame is both lightweight and durable, providing a solid foundation that enhances stability. The WP-USD AER 48 front forks and WP shock absorber with linkage offer exceptional front and rear travel of 310 mm and 300 mm, respectively, absorbing obstacles with ease and keeping you glued to the track. Safety is paramount, and the powerful braking system—comprising a 260 mm front disc with four-piston calipers and a 220 mm rear disc with two-piston calipers—delivers confidence-inspiring stopping power. With a seat height of 960 mm, it’s designed for optimal control, while a commendable ground clearance of 375 mm ensures that you can conquer rough terrain without hesitation. **

Pros

  • Lightweight Design: Weighing in at just 87.2 kg (192.2 pounds), the 150 SX is extremely agile, making it easier to maneuver on the track.
  • Powerful Engine: The two-stroke engine delivers a thrilling powerband, ideal for quick acceleration and impressive speed.
  • Advanced Suspension: WP suspension components provide exceptional handling and comfort, allowing riders to tackle jumps and bumps with confidence.

Cons

  • Kickstarter Only: The absence of an electric starter may be a drawback for some riders, particularly in challenging terrain.
  • Limited Fuel Capacity: With a fuel tank that holds only 7.00 litres (1.85 gallons), longer rides may necessitate more frequent pit stops.
  • Height Consideration: The seat height of 960 mm may be on the taller side for shorter riders, which could affect comfort and control.

Technical details

Source specification data

Make
KTM
Model
150 SX
Category
Cross-motocross
Starter
Kick
Color Options
Orange/white/black
Clutch
Multi-plate clutch, Brembo hydraulics
Gearbox
6-speed
Ignition
Kokusan EMS
Driveline
14:50. Primary drive: 23:73.
Engine Type
Reed intake.
Fuel System
Carburettor. Mikuni TMX
Bore X Stroke
58.0 x 54.5 mm (2.3 x 2.1 inches)
Displacement
143.90 ccm (8.78 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, two-stroke
Transmission Type Final Drive
Chain
Dry Weight
87.2 kg (192.2 pounds)
Seat Height
960 mm (37.8 inches) If adjustable, lowest setting.
Fuel Capacity
7.00 litres (1.85 gallons)
Ground Clearance
375 mm (14.8 inches)
Rake
26.1°
Wheels
C
machined hubs.
Excel
rims.
Wire
spoked.
Frame Type
25CrMo4 steel central-tube frame
Rear Brakes
Single disc. Two-piston calipers.
Front Brakes
Single disc. Four-piston calipers.
Rear Suspension
WP shock absorber with linkage
Front Suspension
WP-USD, AER 48, Ø 48 mm
Rear Wheel Travel
300 mm (11.8 inches)
Front Wheel Travel
310 mm (12.2 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
260 mm (10.2 inches)

Available colors

Orange/white/black