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KTM 50 SX 2025


*2025 MODEL*

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KTM 50 SX
KTM 50 SX
KTM 50 SX
KTM 50 SX

Description

When the next step up is into the 50cc class, there is no better option than the most powerful 50cc out there. For 2025, the KTM 50 SX is built around an advanced steel frame, housing a powerful engine, a 35mm WP XACT AER fork, a WP XACT monoshock, and an advanced hydraulic Formula brake system. Simply put - it's the most advanced and READY TO RACE 50 cc mini-crosser available to your little racer.

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Features

KTM 50 SX ADJUSTABILITY
1
ADJUSTABILITY
Different adjustability options were built into the 2025 KTM 50 SX construction using scientific statistical data and young racers' input data. Finding the right fit for your little ripper is easy thanks to height-adjustable suspension, handlebar position, subframe, and bodywork, taking the seat height from a low setting of 634mm to a taller setting of 682mm.
KTM 50 SX CARBURETOR
2
CARBURETOR
A proven Dell'Orto type PHBG 19 BS carburetor takes prime position in producing the goods in the 2025 KTM 50 SX, with updated settings that work perfectly in harmony with the new engine, exhaust, and air intake design.
KTM 50 SX PERFORMANCE
3
PERFORMANCE
The 2025 KTM 50 SX features a modern and compact engine using the latest 2-stroke technology. Using a 3-shaft design, the crankshaft is positioned near the center of gravity, which not only benefits mass centralization but also creates the ideal intake angle into the reed valve for top-level performance. An independent cylinder blank allows for a completely new cylinder design, with increased power.
KTM 50 SX TANK
4
TANK
The KTM 50 SX is ready to fuel the fire in your little ripper with an updated tank design to compliment the new frame concept and bodywork.
KTM 50 SX AIRBOX AND FILTER
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AIRBOX AND FILTER
An all-new airbox concept features a conventional suction sleeve made from a hard-wearing polyamide instead of rubber and a Twin Air filter mounting system that now features snap locks for easy and intuitive mounting. The Twin Air filter is also placed under the seat and is easily accessible without any tools by simply removing the seat. It also features improved dirt intrusion resistance, with no more dirt falling into the intake tract when changing the filter.
KTM 50 SX HANDLEBARS & GRIPS
6
HANDLEBARS & GRIPS
Hold on tight! The high-quality, tapered, black handlebar is made of lightweight aluminum alloy and ensures top stability, vibration damping, and control. An entirely new bend and profile is designed specifically to meet the needs of young riders, with ODI grips on the left, and a vulcanized ODI grip on the right-side throttle assembly, adding to the overall quality. A crash pad on the handlebar protects the rider from any rough contact or impact with the bars.
KTM 50 SX WHEELS AND TYRES
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WHEELS AND TYRES
Rolling off the race rig and into the pit lane, the 2025 KTM 50 SX uses lightweight, black anodized, aluminum rims just like the full-size KTM SX range. These provide the highest levels of strength and reliability, while MAXXIS MX-ST tires deliver outstanding performance on any terrain, along with exceptional straight-line stability.
KTM 50 SX FOOTPEGS
8
FOOTPEGS
All-new, "no-dirt" footrests offer a bigger surface area for improved grip while standing on the pegs, and are less susceptible to hooking up in deep ruts, take-offs when scrubbing, or track barriers.
KTM 50 SX EXHAUST
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EXHAUST
A completely new exhaust system, features the same manufacturing process as the full-size 2-stroke KTM SX range, with improved overall quality and performance. This has resulted in massive improvements in thermodynamics. Moreover, improved sealing of the silencer end cap and a new rubber between the header pipe and silencer adds another level of quality to the new exhaust system. The silencer has also been updated and now comes with a black anodized finish and a signature 'Braaaaap!'.

Finance and Descriptions

  • Specifications

    Engine

    ENGINE TYPE
    1-cylinder, 2-stroke engine

    DISPLACEMENT
    49 cm³

    BORE X STROKE
    39.5 mmx40 mm

    COMPRESSION RATION
    0

    RATED OUTPUT
    5kw

    AIR FILTER
    -

    MAX. TORQUE
    -

    LUBRICATION
    Oil-mixture lubrication 1:60

    FUEL SUPPL
    battery

    EXHAUST SYSTEM
    Aluminium

    CERTIFICATION
    Other

    ELECTRICAL SYSTEM
    -

    CLUTCH
    Centrifugal clutch (adjustable)

    GEARBOX
    Automatic

    FINAL DRIVE
    Chain

    IGNITION
    -

    COOLING SYSTEM
    Liquid cooled

    BATTERY
    21Ah

    SPARK PLUG
    -

    STARTING
    Kick

    GEAR RATIO
    -

    PRIMARY DRIVE
    -

    ENGINE OIL
    -

    Chassis

    FRAME
    Central-tube frame with double-cradle

    FRONT SUSPENSION
    XACT 35 WP Upside-Down fork, Ø 35 mm

    FRONT SUSPENSION STROKE
    205 mm

    FRONT BRAKE
    160mm

    REAR SUSPENSION
    XACT WP mono shock

    REAR SUSPENSION STROKE
    185mm

    REAR BRAKE
    160mm

    FRONT RIM TYPE
    Spoked wheels with aluminium rims

    REAR RIM TYPE
    Spoked wheels with aluminium rims

    REAR RIM DIMENSION
    12''

    FRONT TYRE
    -

    REAR TYRE
    -

    HEADLIGHT LAMP
    -

    TAILLIGHT LAMP
    -

    Dimensions

    LENGTH
    -

    WIDTH
    -

    HEIGHT
    -

    GROUND CLEARANCE
    233mm

    UNLADEN WEIGHT
    42.5kg

    PERMITTED TOTAL WEIGHT
    -

    USABABLE TANK VOLUME
    -

    RESERVE
    -

    WHEELBASE
    -

    SEAT HEIGHT
    653MM

  • OTR Payment Required
    This motorcycle must pay an On-The-Road (OTR) cost of £0. The OTR payment is essential for covering road usage and maintenance expenses. Please ensure that this fee is settled promptly to avoid any compliance issues.

£4199

Displacement

50cc

Gearbox

Automatic

Minimum Licence

AM

Colours

Orange

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