KTM 125 SX

R 59 500
Year2020
Mileage12345 km
ColourBlack
Condition
Full Service History
VIN
Registration
Stock Code28469187

Description

This 2020 KTM 125 SX has 12 345 km on the odometer. It is listed for R59 500 by Fast KTM in Alberton, Gauteng.

The 2020 KTM 125 SX is powered by a 124.8 cc liquid-cooled single-cylinder 2-stroke engine with Mikuni TMX 38 carburetor, kick start, 6-speed transmission, wet multi-disc DS clutch with Brembo hydraulics, and premix lubrication system delivering high-revving motocross performance and sharp throttle response. The chassis features a central double-cradle 25CrMo4 steel frame with aluminum subframe designed for lightweight agility and durability. Suspension includes WP XACT 48 mm upside-down front forks providing Approx. 310 mm travel and a WP XACT rear monoshock with linkage delivering Approx. 300 mm travel for precise track control. Braking is handled by a 260 mm front disc brake and 220 mm rear disc brake for consistent stopping performance. The motorcycle rides on 21-inch front and 19-inch rear spoked wheels with motocross tires 80/100 front and 100/90 rear. Additional specifications include seat height 950 mm, wheelbase Approx. 1485 mm, ground clearance Approx. 375 mm, dry weight Approx. 87.5 kg, bore 54 mm, stroke 54.5 mm, and fuel tank capacity Approx. 7.5 L.

Vehicle Stats

Vehicle ConditionUsed
Date Listed03 Jul 2026
Last Updated21 Jul 2026
Views7
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Vehicle Specs

Dry Weight (kg) 137
Dry Weight (lbs.) 302.0 pounds
Dry Weight 137 kg / 302.0 lbs
Power-to-Weight Ratio 0.1095 HP/kg
Bore x Stroke (in,) 2.1 x 2.1 inches
Bore x Stroke (mm) 54.0 x 54.5 mm
Displacement (cc) 124.8 cc
Displacement (ci) 7.62 cubic inches
Engine Type Single cylinder, two-stroke
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Fuel System Injection
Engine Lubrication Wet sump
Ignition Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
Starter Electric
Clutch Wet multi-disc clutch, mechanically actuated
Final Drive Chain   (final drive)
Gearbox 6-speed
Primary Drive 5/8  x  1/4 (520) O Ring. Primary drive: 22:72.
Wheel Travel - Rear (in.) 5.9 inches
Wheel Travel - Rear (mm) 150 mm
Frame Type Central double-cradle
Suspension - Front WP upside-down Ø 48 mm
Suspension - Rear WP Monoshock
Wheel Travel - Rear 150 mm / 5.9 in.
Brakes - Front Single disc
Brakes - Rear Single disc
Tyres - Front 110-17
Specifications courtesy of Specs-SA

Fast KTM

Alberton, Gauteng

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