2012 KTM 300 EXC

Anybody can say that they can ride an endure bike, but not everyone can stake claim to being able to handle something like the KTM 300 EXC.

The two-stroke bike maven is a real torque-wonder, possessing unbelievable power stemming from its 300cc 1-cylinder 2-stroke engine. Combine this scintillating piece of engine performance with a revamped chassis and you have an endure bike that’s been prepped to get down and dirty with the best of its class in the market.

Making the 300 EXC even more attractive is the fact that it’s versatility allows it to be an ideal ride for a variety of purposes, whether it’s the next cross-country or hardcore enduro race. It comes equipped with the latest WP upside-down fork with wider adjustment ranges and a new setting. The sensitive responsiveness of this set-up and outstanding damping of the open-cartridge fork with 48 mm (1.89 in) outer tubes makes for a perfect complement for the bike’s excellent handling characteristics.

On top of all that, the 300 EXC also comes with new wheels carrying CNC-machined hubs, Excel rims, zinc/nickel-coated spokes, and aluminum nipples, making for a light excellent handling machine that’s fit to be ridden in dirt tracks anywhere and at anytime.

Find out more about the KTM 300 EXC after the jump.


  • The understandable technology of the two-stroke engine has indisputable advantages, including a high power/displacement ratio and low weight. In terms of power-to-weight ratio, the 300 EXC is practically unbeatable thanks to the latest facelift. Unrivaled performance and playful handling are the results.
  • Together with the redesigned airbox and flow-optimized intake flange between airbox and carburetor, the new cylinder with low valve timing ensures even better charging with fresh gas. This results in even freer revving and even more power in all rev ranges for the liquid-cooled, two-stroke machine.
  • The responsiveness of the high-torque two-stroke machine can be varied in three stages by replacing springs in the TVC exhaust controller. The rider of the 300 EXC can also choose between two different ignition curves by means of a plug or an optional switch.



The 300 EXC’s new bodywork with the very slim seat and spoiler lines, plus excellent contact points, perfects the bike’s ergonomics, making handling even simpler and more precise. The longer rear fender protects the rider even more effectively from swirled up stones.

New Frame


The completely revamped frame made from high-quality chrome-molybdenum steel is characterized by even greater lateral stiffness. It is also even better at absorbing jolts introduced by the suspension system, whereby the playful handling and comfort of the 300 EXC have been further optimized.

New Swingarm, New PDS and New Setting


The 300 EXC’s new, lighter, cast aluminum swingarm accommodates the shock absorber more centrally, in order to load the swing arms more evenly. The new, 7 mm (0.28 in) longer PDS shock absorber with adjustable rebound and high/low-speed compression damping, and a new setting is installed more flatly, so providing even more progression.


Design1-cylinder 2-stroke engine, water-cooled, with reed intake and exhaust control
Displacement293 cm³ (17.88 cu in)
Bore72 mm (2.83 in)
Stroke72 mm (2.83 in)
Starting aidKickstarter and electric starter
Transmission6 gear, claw shifted
Primary gear26:72
Final drive14:50 (13:50)
ClutchWet multi-disc clutch / hydraulically operated
Ignition systemContactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
FrameCentral tube frame made of chrome molybdenum steel tubing
ForksWP Suspension Up Side Down 4860 MXMA PA
Shock absorberWP Suspension PDS 5018 DCC
Suspension travel Front300 mm (11.81 in)
Suspension travel Rear335 mm (13.19 in)
Brake systemDisc brakes, brake calipers on floating bearings
Brake discs - diameter Front260 mm (10.24 in)
Brake discs - diameter Rear220 mm (8.66 in)
Chain5/8 x 1/4"
Steering head angle63.5°
Wheel base1,482±10 mm (58.35±0.39 in)
Ground clearance (unloaded)355 mm (13.98 in)
Seat height (unloaded)960 mm (37.8 in)
Total fuel tank capacity approx.9.5 l (2.51 US gal)
Unleaded premium fuel, mixed with 2-stroke engine oil (1:60)
Weight without fuel approx.104 kg (229 lb.)


KTM PartsOnline----"Whether in the Extreme Enduro or the E2 World Championship, the 300 EXC is the ultimate victory machine. Built with the ideal combination of performance and weight, the serial Erzberg winner is the enduro to beat when the going gets really tough. Improved performance mounted in a completely revamped chassis, with a new frame, upgrades the lightest enduro in the E2 class even further. Proof on two wheels that the two-stroke machines from KTM are also to be reckoned with in future."

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