2022 KTM 125 SX Specifications

Name: 2022 KTM 125 SX
Brand: KTM

No images available

Tap to enlarge

2022 KTM 125 SX Overview

The 2022 KTM 125 SX is an enduro / off-road motorcycle built around 124.8 cc of displacement. Under the tank sits a Single cylinder, two-stroke engine. The bore and stroke measures 54 x 54.5 mm. From a practical standpoint, the 2022 125 SX tips the scales at 87.5 kg, carries a 7.50-litre fuel tank and offers a seat height of 950 mm. Scroll down for the complete 2022 KTM 125 SX spec sheet covering every technical detail from suspension travel to tyre sizes.

2022 125 SX - Pros & Cons

Strengths

Fuel injection: The fuel injection injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.

Considerations

Tall seat height: The 950 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.

Owner Experiences & Common Issues

Throttle response and fuelling

The fuel injection on the 2022 KTM 125 SX is generally well-regarded. Some owners note a slight hesitation at small throttle openings when cold, which clears once the engine reaches operating temperature. A quick visual check of the injector connectors during routine servicing is good practice on higher-mileage examples.

125 SX - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2022 KTM 125 SX, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained 125 SX should fire up cleanly and settle to a smooth idle within a few seconds.

Oil and filter changes

Regular oil changes are the single most important maintenance task on any 125 SX. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.

Fuel system care

The 125 SX's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.

2022 KTM 125 SX - Frequently Asked Questions

What engine does the 2022 KTM 125 SX have?

The 2022 KTM 125 SX uses a Single cylinder, two-stroke engine with 124.8 cc of displacement.

How much does the 2022 KTM 125 SX weigh?

The 2022 KTM 125 SX weighs 87.5 kg. This is the manufacturer's dry figure.

What is the fuel tank capacity of the 2022 KTM 125 SX?

The 2022 KTM 125 SX has a 7.50-litre fuel tank.

Is the 2022 KTM 125 SX suitable for shorter riders?

The 2022 KTM 125 SX has a seat height of 950 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.

What brakes does the 2022 KTM 125 SX have?

The 2022 KTM 125 SX uses Single disc at the front and Single disc at the rear.

What tyre sizes does the 2022 KTM 125 SX use?

The front tyre size on the 2022 KTM 125 SX is 110-17.

What fuel system does the 2022 KTM 125 SX use?

The 2022 KTM 125 SX uses Injection, providing precise fuelling across the rev range and reliable cold-start behaviour.

KTM 125 SX Spec Evolution

The KTM 125 SX was produced across 21 model years (2003-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Wet Weight	-	-	-	-	-	-	-	-	104.0 kg / 229.3 lbs	292.1 kg / 643.9 lbs	-	112.0 kg / 246.9 lbs	-	-	-	-	-	-	-	-	-
Dry Weight	93.6 kg / 206.4 lbs	93.6 kg / 206.4 lbs	92.4 kg / 203.7 lbs	92.4 kg / 203.7 lbs	92.4 kg / 203.7 lbs	90.8 kg / 200.2 lbs	90.8 kg / 200.2 lbs	90.8 kg / 200.2 lbs	88.8 kg / 195.8 lbs	91.6 kg / 201.9 lbs	90.8 kg / 200.2 lbs	90.8 kg / 200.2 lbs	90.8 kg / 200.2 lbs	87.8 kg / 193.6 lbs	87.2 kg / 192.2 lbs	87.2 kg / 192.2 lbs	87.5 kg / 192.9 lbs	137 kg / 302.0 lbs	87.5 kg / 192.9 lbs	87.5 kg / 192.9 lbs	92.4 kg / 203.7 lbs
Engine Detail	-	-	-	-	-	-	-	-	-	Reed intake and exhaust control	Reed intake.	Reed intake.	Reed intake.	Reed intake.	Reed intake.	Reed intake.	Reed intake.	-	-	-	-
Engine Type	Single cylinder	Single cylinder	Single cylinder	Single cylinder	Single cylinder	Single cylinder	Single cylinder	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke	Single cylinder, two-stroke
Seat Height	925 mm / 36.4 in.	925 mm / 36.4 in.	925 mm / 36.4 in.	925 mm / 36.4 in.	925 mm / 36.4 in.	960 mm / 37.8 in.	985 mm / 38.8 in.	985 mm / 38.8 in.	992 mm / 39.1 in.	992 mm / 39.1 in.	992 mm / 39.1 in.	992 mm / 39.1 in.	992 mm / 39.1 in.	960 mm / 37.8 in.	960 mm / 37.8 in.	960 mm / 37.8 in.	950 mm / 37.4 in.	-	850 mm / 33.5 in.	950 mm / 37.4 in.	958 mm / 37.7 in.
Fuel Capacity	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	8.00 litres / 2.11 gallons	8.00 litres / 2.11 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.50 litres / 1.98 gallons	7.00 litres / 1.85 gallons	7.00 litres / 1.85 gallons	7.00 litres / 1.85 gallons	7.50 litres / 1.98 US gallons	-	7.50 litres / 1.98 US gallons	7.50 litres / 1.98 US gallons	7.20 litres / 1.90 US gallons
Stroke	2	2	2	2	2	2	2	-	-	-	-	-	-	-	-	-	-	-	-	-	2-stroke
Ground Clearance (mm)	390 mm	390 mm	390 mm	390 mm	390 mm	390 mm	390 mm	390 mm	385 mm	395 mm	395 mm	395 mm	395 mm	375 mm	375 mm	375 mm	375 mm	-	375 mm	375 mm	359 mm

Key Specifications

Engine

Single cylinder, two-stroke

Power

N/A

Torque

N/A

Top Speed

N/A

Weight

87.5 kg / 192.9 lbs

Fuel Capacity

7.50 litres / 1.98 US gallons

Full 2022 KTM 125 SX Specifications

Colours White/orange/blue

Power-to-Weight Ratio 0.1714 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 System Injection

Engine Lubrication Wet sump

Ignition Kokusan EMS

Starter Kick

Compare KTM 125 SX

See how the 2022 KTM 125 SX stacks up against similar motorcycles.

2022 KTM 125 SX

vs 2022 Yamaha YZ125X

2022 KTM 125 SX

vs 2022 Yamaha XTZ125

2022 KTM 125 SX

vs 2022 KTM 125 XC

2022 KTM 125 SX

vs 2022 Honda CRF110F

2022 KTM 125 SX

vs 2022 Honda XR 150L

2022 KTM 125 SX

vs 2021 KTM 150 XC-W TPI

Build your own comparison →

All KTM models Enduro / Off-Road Compare bikes

2022 KTM 125 SX Specifications

2022 KTM 125 SX Overview

2022 125 SX - Pros & Cons

Strengths

Considerations

Owner Experiences & Common Issues

Throttle response and fuelling

125 SX - Buying & Maintenance Guide

What to check before buying

Oil and filter changes

Fuel system care

2022 KTM 125 SX - Frequently Asked Questions

KTM 125 SX Spec Evolution

Key Specifications

Full 2022 KTM 125 SX Specifications

Compare KTM 125 SX

125 SX Years

Explore More

KTM 125 SX - other years