2024 KTM 125 SX Top Speed, Price, Specs, ❤️ Review

KTM 125 SX Top Speed, Price, Specs, Review, Mileage, Seat Height, Horsepower, Weight, Images, Overview

KTM 125 SX Top Speed, Price, Specs, Review, Mileage, Seat Height, Horsepower, Weight, Images, Overview

The KTM 125 SX is the most compact and lightweight of the full-size dirt bikes and gives a confidence-inspiring ride like no other. A lightweight chassis teams up with the most competitive 125cc 2-stroke engine in its class, giving superior power and agility to fulfill any young adrenaline seeker’s requirements. This KTM 125 SX 2-stroke screamer is the latest entry point into the pro ranks and a sure-fire way to add to the medal collection.

2024 KTM 125 SX Price

KTM 125 SX 2021 Price in The USA

Price:* MSRP: $ 7949 plus $ 535 freight

KTM 125 SX Key Features

PERFORMANCE

The KTM 125 SX is built to have more torque than any 125 cc 2-stroke engine that has come before it. It will continue to lead its class with unstoppable forward momentum.  With a total weight of only 39.3 lb and impressive horsepower numbers, this lightweight engine keeps its high-revving nature while putting down the grunt where it counts.

SELECTABLE MAPS

Once again, slicing into the 125 cc class with the leading edge of technology, the KTM 125 SX motorcycle features a map select switch allowing the racer to switch between 2 engine maps.

EFI + POWER VALVE

With EFI, you can ride better. Along with the electronic fuel injection, the KTM 125 SX also has a new power valve. This gives the bike more usable power all the way through the rev range. A better grip comes from more even power. 

ELECTRONIC FUEL INJECTION

The 2-stroke KTM SX range gets a new pre-mix, and Electronic Fuel Injection becomes the standard. No more setting up the jets before the race. And with the all-new Keihin EFI and reed valve case design, you can be sure that you’re always putting out the best power, no matter how high you are.

ELECTRIC START

Think about this: You’re seven laps into a great race. When you miss your turn, you get stuck in a deep rut.  But don’t worry about it. To take the last flag, all you have to do is press the “start” button. This is what the KTM 125 SX is really like. The days of having to kick-start the bike are over, thanks to a 12.8V 2 Ah lithium-ion battery under the rider’s seat, a new high-quality stator and pickup, and a very strong design.

EASY SUSPENSION ADJUSTMENT

Get dialed in! Both ends of the suspension on the KTM SX range can be set up without any tools. It has a brand-new shock absorber design with hand-adjustable dual compression control. This makes it easy for riders to change the settings for high and low speeds in seconds. At the front, the forks are easy to adjust thanks to a single air pressure preload valve and click adjusters for compression and rebound that are easy to reach. We’ll even give you the air pump for free.

ERGONOMICS

The KTM SX and KTM SX-F range feature an entirely new and improved rider triangle, delivering improved knee contact – especially when standing on the pegs – with enhanced gripping surfaces. New plastics work to expel mud buildup in wet, muddy conditions, with a new, flatter seat profile and high grip seat cover providing excellent rider movement and control. The polyamide-reinforced aluminum subframe further improves rider feel and feedback.

MASS CENTRALIZATION

With a major emphasis placed on mass centralization, the KTM 125 SX motorcycle engine is designed to centralize rotating mass for optimal operation with the chassis. This results in a lighter, more nimble handling feel, which, together with more torque and smoother power delivery, make it the most competitive 125 cc motocrosser yet.

KTM 125 SX Top Speed

➥Top Speed: 85 mph

KTM 125 SX Horsepower

➥Horsepower: 37.5 HP

KTM 125 SX 2021 Price, Top Speed, Specs, Mileage, Review & Images

KTM 125 SX Weight

➥weight: 87.5 kg

KTM 125 SX Seat Height

➥Seat Height:  950 mm

KTM 125 SX Fuel Capacity

➥Fuel Capacity: 7.5 l

KTM 125 SX Specs

KTM 125 SX Specs

ENGINE

TRANSMISSION6-speed
STARTERKickstarter
STROKE54.5 mm
BORE54 mm
CLUTCHMulti-plate clutch, Brembo hydraulics
DISPLACEMENT124.8 cm³
EMSKokusan
DESIGN1-cylinder, 2-stroke engine

SUSPENSION

FRONT SUSPENSIONWP XACT-USD, Ø 48 mm
REAR SUSPENSIONWP XACT Monoshock with linkage
SUSPENSION TRAVEL (FRONT)310 mm
SUSPENSION TRAVEL (REAR)300 mm

BRAKES

FRONT BRAKEDisc brake
REAR BRAKEDisc brake
FRONT BRAKE DISC DIAMETER260 mm
REAR BRAKE DISC DIAMETER220 mm

CHASSIS

TANK CAPACITY (APPROX.)7.5 l
CHAIN5/8 x 1/4″
FRAME DESIGNCentral double-cradle-type 25CrMo4 steel

DIMENSIONS

GROUND CLEARANCE375 mm
SEAT HEIGHT950 mm
STEERING HEAD ANGLE63.9 °
WEIGHT (WITHOUT FUEL)87.5 kg

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