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KTM 125 EXC
2011Off-road

KTM 125 EXC

Key specifications

Engine
125 cc
Weight
97 kg
Fuel type
petrol
Fuel capacity
2.5 L
Transmission
6-speed
Seat height
39 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2011 KTM 125 EXC, a standout contender in the competitive world of enduro motorcycles. Renowned for its lightweight agility and robust performance, the 125 EXC is engineered for both seasoned riders and aspiring off-road enthusiasts. With KTM’s signature orange, white, and black aesthetics, this bike not only catches the eye but also delivers a blend of power and precision that makes it a favorite among enduro riders. It's an ideal choice for navigating rugged terrains, from forest trails to rocky mountain paths, where the need for speed and control is paramount. At the heart of the 2011 KTM 125 EXC lies a finely tuned 124.8cc single-cylinder two-stroke engine that exemplifies the spirit of competition. With a compression ratio of 12.5:1, this powerplant produces a punchy powerband that offers exhilarating acceleration and responsiveness. The engine breathes through a Keihin PWK 36 S AG carburettor, ensuring optimal fuel delivery for peak performance. Paired with a smooth-shifting 6-speed gearbox, the EXC delivers a seamless ride, whether you’re blasting up a hill or gliding through tight corners. The liquid cooling system maintains optimal temperatures, allowing the engine to perform at its best, while the hydraulically operated wet double disk clutch ensures that power is transmitted efficiently to the rear wheel. The 125 EXC boasts an impressive chassis design, featuring a central double-cradle frame constructed from durable 25CrMo4 steel, complemented by an aluminum subframe. This combination provides exceptional strength without compromising weight, tipping the scales at just 97 kg (213.8 lbs). The WP USD 48 mm front forks and WP PDS rear shock absorber offer 185 mm of travel, soaking up bumps and providing stability over challenging terrains. With a ground clearance of 390 mm (15.4 inches) and a seat height of 985 mm (38.8 inches), riders can navigate obstacles with confidence while maintaining an aggressive stance. The bike’s braking system, featuring a 260 mm front disc and a 220 mm rear disc, ensures reliable stopping power, enhancing rider safety on unpredictable trails. **

Pros

  • Lightweight Agility: Weighing in at just 97 kg, the 125 EXC is incredibly nimble, making it perfect for tight trails and technical sections.
  • Powerful Engine Performance: The 124.8cc two-stroke engine delivers exhilarating acceleration and responsiveness, making every ride an adrenaline-filled adventure.
  • Superior Suspension: The WP suspension provides excellent travel and stability, absorbing bumps and enhancing overall ride comfort.

Cons

  • Kick Start Only: The absence of an electric starter may be a drawback for some riders who prefer the convenience of push-button ignition.
  • Tall Seat Height: With a seat height of 985 mm, it may be challenging for shorter riders to handle the bike comfortably.
  • Limited Fuel Capacity: The 9.5-litre (2.51-gallon) fuel tank may necessitate more frequent refueling during long rides, especially in remote areas.

Technical details

Source specification data

Make
KTM
Model
125 EXC
Category
Enduro-offroad
Starter
Kick
Comments
A
racing tuned version called
S
is available.
Color Options
Orange/white/black
Clutch
Wet
m
Double
disk clutch, operated hydraulically
Gearbox
6-speed
Ignition
Kokusan
Driveline
14:42 (13:50). Primary drive: 23:73.
Fuel System
Carburettor. Keihin PWK 36 S AG
Bore X Stroke
54.0 x 54.5 mm (2.1 x 2.1 inches)
Compression
12.5:1
Displacement
124.80 ccm (7.62 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, two-stroke
Exhaust System
Aluminium
Lubrication System
Mixture oil lubrication 1:60
Transmission Type Final Drive
Chain
Dry Weight
97.0 kg (213.8 pounds)
Seat Height
985 mm (38.8 inches) If adjustable, lowest setting.
Fuel Capacity
9.50 litres (2.51 gallons)
Ground Clearance
390 mm (15.4 inches)
Rake
26.5°
Wheels
1.60 x 21in., 2.15 x 18in. Excel
Rear Tyre
120/90-18
Frame Type
Central
double-cradle-type 25
Mo4
steel.
Subframe
:
Aluminium
.
Front Tyre
90/90-21
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
WP PDS shock absorber
Front Suspension
WP USD 48 mm (1.89 in)
Rear Wheel Travel
185 mm (7.3 inches)
Front Wheel Travel
185 mm (7.3 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
260 mm (10.2 inches)

Available colors

Orange/white/black