2014 KTM 50 SX Specifications

Name: 2014 KTM 50 SX
Brand: KTM

Cross / motocross • Specs last verified 13 July 2026

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2014 KTM 50 SX Overview

KTM 50 SX is a cross / motocross motorcycle, displacing 49 cc. Power comes from a Single cylinder, two-stroke engine. Bore and stroke come in at 39.5 x 40 mm. On the performance side, it delivers. Top speed is factory-quoted at 45.1 km/h. On the road, the 2014 50 SX tips the scales at 112 kg, carries a 2.30-litre fuel tank, offers a seat height of 684 mm and spans a 1,032 mm wheelbase. The full 2014 KTM 50 SX spec sheet below covers every technical detail, from suspension travel to tyre sizes.

2014 KTM 50 SX compared with other bikes in the Cross / motocross category

We checked the recorded figures for the 2014 KTM 50 SX against up to 224 bikes in the Cross / motocross category in our database, counting each model once at the model year nearest to this one.

None of the other 223 bikes in the Cross / motocross category has a smaller engine displacement than the 49 cc of the 50 SX.
With 684 mm, the 50 SX has the joint 7th lowest seat height of 200 bikes in the Cross / motocross category, 24% below the category average of 902 mm.
Top speed of 45 km/h is lower than that of 33 of the other 44 bikes in the Cross / motocross category.
Narrowing the field to the 96 models within five model years of it, the engine displacement of 49 cc is smaller than that of 91 of the other 95.

Versus the 2013 model

The figures we track are unchanged from the 2013 model: displacement and seat height all match.

2014 50 SX - Pros & Cons

Strengths

Strong front braking: Stopping power up front is strong thanks to the single disc setup, with plenty of room to upgrade further with braided lines.
Accessible seat height: A 684 mm seat height keeps this manageable for most riders, which helps confidence at parking-lot speeds.

Considerations

Carburetor fuelling: Expect to spend more time keeping the carbs in tune, especially after long storage periods or a change in altitude.
Modest fuel capacity: Range between stops is limited by the 2.30-litre tank - plan fuel stops accordingly on longer routes.
Chain final drive upkeep: Budget time for routine chain maintenance - it's cheap to replace but needs consistent attention to avoid premature sprocket wear.

Wear Points & Servicing Notes

Carburetor maintenance

Carburetors on the 50 SX need periodic attention - pilot jets and float needles are the first parts to gum up after the bike sits, and the first thing to check if idle or throttle response degrades.

Brake disc and pad wear

Braking up front comes from single disc with four-piston calipers - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.

Suspension condition on used examples

The 50 SX's suspension runs WP ?Suspension USD ?35 at the front. The rear uses WP ?Suspension ?3614 BAEM. Fork-seal condition and rear linkage play are the two things worth checking before buying used.

Final drive maintenance

The 50 SX uses chain final drive, which is cheap to replace but needs regular cleaning, lubrication and tension checks to get a full service life out of the sprockets.

Frame & chassis check

Built around a Central tube frame of chrome molybdenum steel tubing, powder-coated, the 50 SX's chassis is straightforward to inspect: look for corrosion, cracks or repair welds around stress points like the head-stock and swingarm mounts.

Low-speed handling

112 kg keeps the 50 SX easy to move around in tight spaces, car parks and on the stand alike.

50 SX - Buying & Maintenance Guide

What to check before buying

Before handing over money for a used 2014 KTM 50 SX with its 49 cc cross / motocross, cover the fundamentals: service book and oil change history, drivetrain wear, and any sign of oil weeping around the casings. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 12 years old, this cross / motocross is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. Cold-starting it yourself tells you a lot - a healthy 50 SX should catch quickly and settle into a smooth idle.

Oil and filter changes

Nothing protects the 50 SX's 49 cc single cylinder, two-stroke like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.

Carburetor upkeep

Deposits in the carbs are the usual culprit behind poor running on a stored 50 SX - strip and clean the float bowls before the first start. Pilot jets clog first and get overlooked most, so make a point of checking them.

2014 KTM 50 SX - Frequently Asked Questions

What engine does the 2014 KTM 50 SX have?

The 2014 KTM 50 SX uses a Single cylinder, two-stroke engine with 49 cc of displacement.

What is the top speed of the 2014 KTM 50 SX?

The 2014 KTM 50 SX has a factory-quoted top speed of 45.1 km/h. Real-world speeds vary depending on rider weight, conditions and state of tune.

How much does the 2014 KTM 50 SX weigh?

The 2014 KTM 50 SX weighs 112 kg. This is the manufacturer's wet figure.

What is the fuel tank capacity of the 2014 KTM 50 SX?

The 2014 KTM 50 SX has a 2.30-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 38-45 km between stops.

Is the 2014 KTM 50 SX suitable for shorter riders?

The 2014 KTM 50 SX has a seat height of 684 mm. This is a comfortable, accessible height for most riders.

What brakes does the 2014 KTM 50 SX have?

The 2014 KTM 50 SX uses single disc with four-piston calipers at the front and single disc with two-piston calipers at the rear.

What tyre sizes does the 2014 KTM 50 SX use?

The 2014 KTM 50 SX runs 110/70-17 front and 130/70-17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

KTM 50 SX Spec Evolution

The KTM 50 SX was produced across 17 model years (2006-2023). 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	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2021	2022	2023
Wet Weight	-	-	-	-	-	104.0 kg / 229.3 lbs	-	-	112.0 kg / 246.9 lbs	-	-	-	-	-	-	-	-
Dry Weight	38.8 kg / 85.5 lbs	38.8 kg / 85.5 lbs	38.8 kg / 85.5 lbs	39.8 kg / 87.7 lbs	39.8 kg / 87.7 lbs	39.8 kg / 87.7 lbs	41.5 kg / 91.5 lbs	41.5 kg / 91.5 lbs	39.8 kg / 87.7 lbs	39.8 kg / 87.7 lbs	41.5 kg / 91.5 lbs	41.5 kg / 91.5 lbs	41.5 kg / 91.5 lbs	41.5 kg / 91.5 lbs	41.5 kg / 91.5 lbs	41.5 kg / 91.5 lbs	41.5 kg / 91.5 lbs
Engine Detail	-	-	-	-	-	-	Reed intake	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, 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	650 mm / 25.6 in.	650 mm / 25.6 in.	660 mm / 26.0 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	684 mm / 26.9 in.	665 mm / 26.2 in.	665 mm / 26.2 in.
Fuel Capacity	1.80 litres / 0.48 gallons	1.80 litres / 0.48 gallons	1.80 litres / 0.48 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 gallons	2.30 litres / 0.61 US gallons	2.30 litres / 0.61 US gallons	2.30 litres / 0.61 US gallons	2.30 litres / 0.61 US gallons
Stroke	2	2	2	2	-	-	-	-	-	-	-	-	-	-	-	-	2-stroke
Ground Clearance (mm)	255 mm	255 mm	255 mm	255 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm	252 mm

Key Specifications

Engine

Single cylinder, two-stroke

Power

Not recorded

Torque

Not recorded

Top Speed

45.1 km/h / 28.0 mph

Weight

112.0 kg / 246.9 lbs

Fuel Capacity

2.30 litres / 0.61 gallons

Full 2014 KTM 50 SX Specifications

Comments German brand.

Colours Orange/black

Ground Clearance (in.) 9.9 inches

Ground Clearance (mm) 252 mm

Seat Height 684 mm / 26.9 in.

Wheelbase 1,032 mm / 40.6 in.

Height 1,120 mm / 44.1 in.

Length 2,120 mm / 83.5 in.

Width 840 mm / 33.1 in.

Dry Weight 39.8 kg / 87.7 lbs

Fuel Capacity 2.30 litres / 0.61 gallons

Wet Weight 112.0 kg / 246.9 lbs

Top Speed 45.1 km/h / 28.0 mph

Displacement (cc) 49.00 cc

Displacement (ci) 2.99 cubic inches

Engine Type Single cylinder, two-stroke

Bore x Stroke (in,) 1.6 x 1.6 inches

Bore x Stroke (mm) 39.5 x 40.0 mm

Engine Detail Reed intake.

Fuel System Carburettor

Emissions Euro 2

Engine Lubrication Mixture oil lubrication

Exhaust Stainless steel exhaust

Ignition SELETTRA 2p D36

Starter Kick

Clutch 3-lining automatic clutch on the main shaft / centrifugal force

Final Drive Chain

Gearbox 6-speed

Primary Drive 11:40. Primary drive: 33:61 straight cut spur gear.

Frame Type Central tube frame of chrome molybdenum steel tubing, powder-coated

Suspension - Front WP ?Suspension USD ?35

Suspension - Rear WP ?Suspension ?3614 BAEM

Rake 24.0°

Wheel Travel - Front 205 mm / 8.1 in.

Wheel Travel - Rear 185 mm / 7.3 in.

Instrumentation Digital cockpit

Brakes - Front Diameter (in.) 6.3 inches

Brakes - Front Diameter (mm) 160 mm

Brakes - Rear Diameter (in.) 5.5 inches

Brakes - Rear Diameter (mm) 140 mm

Brakes - Front Single disc. Four-piston calipers.

Brakes - Rear Single disc. Two-piston calipers.

Tyres - Front 110/70-17

Tyres - Rear 130/70-17

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.

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