KTM 400 EXC (2002 – 2003)

KTM 400 EXC (2002 - 2003)

The KTM 400EXC is a testament to the brand’s dominance in the world of enduro racing, having claimed the 1999 World Enduro Championship title in the hands of Giovanni Sala.

This bike has made a significant impact on the 400cc four-stroke market, offering a smooth and clean riding experience that rivals that of a motocross bike.

With a slightly unconventional engine configuration, featuring an 89mm x 64mm configuration, KTM has prioritized torque over high-revving performance, resulting in a more accessible and forgiving power delivery.

The electric start feature, a standard on this model, may be met with skepticism by purists, but it’s hard to argue with the convenience it offers. The power delivery is smooth, with a noticeable spike in the midrange that’s sure to put a smile on your face.

The WP suspension package is firm and competition-focused, but can be finicky to set up, with some initial stiction issues on the inverted front forks.

Key Specifications

Engine TypeFour stroke, single cylinder, SOHC, 4 valves
Engine Capacity24.3 cubic inches / 398 cc
Max Power32.1 kw / 44 hp
Fuel Tank Capacity2.25 US gallons / 8.5 L
Weight (Wet/Kerb)269.0 lbs / 122 kg
Seat Height36.4 inches / 925 mm

All Specifications

Make & Model

ModelKTM 400 EXC
Year2002 – 2003

Engine

Engine TypeFour stroke, single cylinder, SOHC, 4 valves
Displacement24.3 cubic inches / 398 cc
Bore x Stroke89 x 64 mm
Compression Ratio11.5:1
Max Horsepower32.1 kw / 44 hp
Engine Management SystemKeihin MX-FCR 39
Cooling SystemLiquid cooled
ExhaustTwin head pipe, two into one collector, aluminium muffler with Krizman USFS approved spark arrestor

Performance

Top Speedn/a

Transmission

Gearbox6 Speed
Primary Drive Ratio30:81
Gear Ratios1st 14:34 / 2nd 17:31 / 3rd 19:28 / 4th 22:26 / 5th 24:23 / 6th 26:21
Final DriveChain, O-ring

Electrical & Electronics System

StarterElectric & kick

Chassis & Suspension

Frame TypeChrome-Moly main frame, aluminium swingarm
Front SuspensionWP 43mm upside-down fork
Front Suspension Travel11.6 inches / 295 mm
Rear SuspensionFully adjustable WP PDS shock
Rear Suspension Travel12.6 inches / 320 mm
Rake26.5o

Wheels & Brakes

Front Tire Size80/100 – 21, Bridgestone M77
Rear Tire Size110/100 – 18, Bridgestone M78
Front BrakesSingle 260 mm disc, Brembo double piston caliper, sintered pad
Rear BrakesSingle 220 mm disc, Brembo single piston caliper, organic pads

Dimension & Weights

Seat Height36.4 inches / 925 mm
Wheelbase58.3 inches / 1481 mm
Ground Clearance380 mm / 15.0 in
Fuel Tank Capacity2.25 US gallons / 8.5 L
Wet (kerb/curb) Weight269.0 lbs / 122 kg
Dry Weight112 kg / 247 lbs

Features

  • Standard electric start
  • 89mm x 64mm piston configuration
  • Increased torque at lower revs
  • Smooth power delivery
  • Notable power spike in midrange
  • WP suspension package
  • Inverted front forks
  • Adjustable suspension
  • Powerful brakes
  • Exceptional motor for trail and enduro riding
  • Good compromise of excitement and predictability
  • Easy to slide forward or rearward
  • Kickstarter on righthand side
  • Available in 400cc four-stroke configuration

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