2023 KTM 50 SX Factory Specifications

Name: 2023 KTM 50 SX Factory
Brand: KTM

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2023 KTM 50 SX Factory Overview

The 2023 KTM 50 SX Factory is a minibike, cross motorcycle built around 49 cc of displacement. Under the tank sits a Single cylinder, two-stroke engine. The bore and stroke measures 39.5 x 40 mm. From a practical standpoint, the 2023 50 SX Factory tips the scales at 41.5 kg, carries a 2.30-litre fuel tank and offers a seat height of 665 mm. Scroll down for the complete 2023 KTM 50 SX Factory spec sheet covering every technical detail from suspension travel to tyre sizes.

2023 50 SX Factory - Pros & Cons

Strengths

Accessible seat height: At 665 mm, the seat height is approachable for a wide range of rider heights and builds confidence in low-speed manoeuvring.

Considerations

Carburetor fuelling: Carbureted engines need occasional jetting attention and can be reluctant in cold weather or at altitude compared to modern fuel-injected alternatives.

Owner Experiences & Common Issues

Carburetor maintenance

Carburetors on the 2023 KTM 50 SX Factory benefit from a clean and re-jet if the bike has been stored, run on stale fuel, or modified with an aftermarket exhaust. Owners frequently mention that fresh jets and float needle clips transforms throttle response from flat to crisp.

50 SX Factory - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2023 KTM 50 SX Factory, 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 50 SX Factory 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 50 SX Factory. 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.

Carburetor upkeep

Keep the carburetors clean and free of deposits. If the 50 SX Factory has been stored, strip and clean the carb float bowls before attempting to start it. Pilot jets are the first to block and the last to be checked - always include them in any carb rebuild.

2023 KTM 50 SX Factory - Frequently Asked Questions

What engine does the 2023 KTM 50 SX Factory have?

The 2023 KTM 50 SX Factory uses a Single cylinder, two-stroke engine with 49 cc of displacement.

How much does the 2023 KTM 50 SX Factory weigh?

The 2023 KTM 50 SX Factory weighs 41.5 kg. This is the manufacturer's dry figure.

What is the fuel tank capacity of the 2023 KTM 50 SX Factory?

The 2023 KTM 50 SX Factory has a 2.30-litre fuel tank.

Is the 2023 KTM 50 SX Factory suitable for shorter riders?

The 2023 KTM 50 SX Factory has a seat height of 665 mm. This is a comfortable, accessible height for most riders.

What brakes does the 2023 KTM 50 SX Factory have?

The 2023 KTM 50 SX Factory uses Single disc at the front and Single disc at the rear.

What fuel system does the 2023 KTM 50 SX Factory use?

The 2023 KTM 50 SX Factory uses Carburettor, providing precise fuelling across the rev range and reliable cold-start behaviour.

What suspension does the 2023 KTM 50 SX Factory have?

The 2023 KTM 50 SX Factory uses XACT 35 WP Upside-Down fork, Ø 35 mm up front and XACT WP PDS mono shock at the rear.

KTM 50 SX Factory Spec Evolution

The KTM 50 SX Factory was produced across 3 model years (2021-2023). 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	2021	2022	2023
Displacement (cc)	49.8 cc	49.0 cc	49.0 cc
Displacement (ci)	3.04 cubic inches	2.99 cubic inches	2.99 cubic inches
Frame Type	Central-tube frame with double-cradle	25CrMo4 steel central-tube frame	Chrome-molybdenum steel central-tube frame
Suspension - Rear	XACT WP mono shock	XACT WP mono shock	XACT WP PDS mono shock
Colours	White/Orange/Blue/Red	White/orange/red/blue/green	White/orange/grey
Wheel Travel - Rear	185 mm / 7.3 in.	180 mm / 7.1 in.	185 mm / 7.3 in.
Ignition	Seletra 2p D36 EMS	Seletra 2p D36	Seletra 2p D36 EMS

Key Specifications

Engine

Single cylinder, two-stroke

Power

N/A

Torque

N/A

Top Speed

N/A

Weight

41.5 kg / 91.5 lbs

Fuel Capacity

2.30 litres / 0.61 US gallons

Full 2023 KTM 50 SX Factory Specifications

Comments Intended for children 4-10 years old. Special Factory Edition.

Colours White/orange/grey

Stroke 2-stroke

Engine Type Single cylinder, two-stroke

Displacement (ci) 2.99 cubic inches

Displacement (cc) 49.0 cc

Bore x Stroke (in,) 1.6 x 1.6 inches

Bore x Stroke (mm) 39.5 x 40.0 mm

Engine Detail Reed-valve

Fuel System Carburettor

Exhaust FMF silencer

Ignition Seletra 2p D36 EMS

Starter Kick

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