KTM 125 EXC Six Days - 2012 Specifications and Reviews

The 2012 KTM 125 EXC Six Days is a lightweight two-stroke enduro machine built for riders seeking nimble handling and thrilling off-road performance. Its potent 124cc single-cylinder engine delivers sharp power delivery through a six-speed transmission, making it ideal for technical terrain and competitive enduro events. Known for its aggressive styling, rigid chromoly frame, and proven reliability, this model suits intermediate to advanced dirt bike enthusiasts tackling demanding trails and cross-country competitions.

2012
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General information

CategoryEnduro / offroad
Year2012
ModelKTM 125 EXC Six Days
 
 

Engine and Transmission Specifications

Driveline14:50 (13:50). Primary gear 23:73.
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
IgnitionContactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
Fuel systemCarburettor. Keihin PWK 36 S AG
Bore x stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Compression12.5:1
Engine detailsReed intake and exhaust control
Engine typeSingle cylinder, two-stroke
Capacity:124.80 ccm (7.62 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions120/90-18
Front tyre dimensions90/90-21
Rear suspension travel335 mm (13.2 inches)
Rear suspensionWPSuspension PDS 5018 DCC
Front suspension travel300 mm (11.8 inches)
Front suspensionWPSuspension Up Side Down 4860 MXMA PA
Rake (fork angle)26.5°
Frame typeCentral tube frame made of chrome molybdenum steel tubing

Physical measures and capacities

Fuel capacity9.50 litres (2.51 gallons)
Wheelbase1,471 mm (57.9 inches)
Ground clearance355 mm (14.0 inches)
Seat height960 mm (37.8 inches) If adjustable, lowest setting.
Dry weight95.0 kg (209.4 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsOrange/white/blue/black
StarterKick

Performance Profile & Rider Fit

Best For

Track15%
City20%
Cornering60%
Daily Riding15%
Touring15%
Passenger5%

Rider Profile

Best ForThis is a specialist competition enduro machine best suited to riders with genuine off-road skill, as its tall seat, kick start, and race-tuned two-stroke engine punish beginners.
PurposeBuilt for serious enduro racing and technical trail riding, mirroring the factory Six Days replica spec rather than general recreational use.
Rider FitIts featherweight dry weight and tall 960 mm seat height demand a fit, reasonably tall rider comfortable standing on the pegs and manhandling the bike over obstacles.
CharacterA raw, high-revving two-stroke with peaky power delivery, minimal creature comforts, and razor-sharp handling engineered purely for attacking rough terrain.
Not Ideal ForThis bike is not for commuters, highway tourers, passengers, or anyone seeking a comfortable, low-maintenance road-going motorcycle.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2012 KTM 125 EXC Six Days Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 960mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2012 KTM 125 EXC Six Days, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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