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KTM 2019 125 SX Dirt Bike Review Specs

The new KTM 2019 125 SX Dirt Bike is the most minimal and lightweight of the full-size bicycles and conveys a certainty rousing ride like no other. Another lightweight chassis collaborates with the most focused 125cc 2-stroke motor to date. It communicates better readiness and force than satisfy the requests of any youthful adrenalin searcher. This 2-stroke screamer is a definitive section point into the ace positions and a positive fire approach to add to the trophy assortment.

KTM 2019 125 SX Dirt Bike – Features and Specifications

KTM is compelling the fight as Best Dirt Bike Brand. In the most recent ten years, the Austrian brand has been the reliable entertainer in the battle for rivalry amazingness in world championships. Tony Cairoli’s ninth FIM Motocross World Championship title last season, just as the first for the superstar. The KTM 450 SX-F, was a certain feature. Pauls Jonass’ MX2 World Championship proceeded with the orange brand’s predominance in the class with nine triumphs in 10 seasons for the KTM 250 SX-F. The 2017 KTM AMA 450 Supercross title was won in the hands of Ryan Dungey before his retirement. The KTM has earned number of victories in the 250 SX and 450 SX categories this season.

KTM 2019 125 SX Dirt Bike

To keep adding to these mind-blowing accomplishments requires solid inspiration. A guarantee to advancement for hustling and interest in KTM’s ability improvement programs also needed. It creates the best stage for the KTM SX go. These world-winning advancements are tried in the warmth of the fight before being accessible on sequential creation hardware. The 2019 KTM 50 SX, 2019 KTM 65 SX, and 2019 KTM 85 17/14 Dirt Bike give a solid premise to youngsters to step up to the grown-up positions. The KTM 2019 125 SX Dirt Bike, KTM 150 SX, and KTM 250 SX 2-strokes, alongside the KTM 250 SX-F, KTM 350 SX-F and KTM 450 SX-F 4-stroke machines give the keenest weapon in each class.


For the model year 2019, every single grown-up model gets an age changing update with KTM engineers focusing on a further weight decrease. It sets a clear benchmark in each class of KTM 2019 125 SX Dirt Bike. In the higher limit 450cc fragment, the KTM 450 SX-F is significantly lighter than its adversaries. All SX models include a re-worked outline for improved firmness, dealing with straight-line strength. A more drawn out subframe, an amended back hub space, and all-new bodywork for upgraded ergonomics with more opportunity of development. A pristine appearance with new designs praises a recently formed situate and new fuel tank. Another air channel box offers the improved assurance of the air channel and better wind stream for both the 2-strokes and 4-strokes. This wind adds to an increasingly proficient force conveyance and enhanced execution.

New radiators offer active cooling with improved situating for mass centralization than the 2018 KTM 125 SX Dirt Bike. A more grounded lithium-particle battery for the E-starter is agreeable with the revised wiring outfit for a smaller electrical framework. A refreshed triple clip for improved taking care of praises new suspension settings. A recently created, second reason, module stand is one more component of the new range. All models keep on getting a charge out of noteworthy sequential parts — for example, Brembo brakes, WP suspension, NEKEN handlebar, Dunlop tires. In addition to a guide, select switch with incorporated footing control, dispatch control and guide determination on the 4-stroke machines. It is no refinement model year, and it’s a development; around 60% of each bicycle’s parts are new.

KTM 2019 125 SX Dirt Bike


All models in the KTM SX have gotten significant motor modifications over past models. The KTM 250 SX-F and KTM 350 SX-F models appreciate a recently planned DS grasp. Every one of the 4-strokes gloats changed transmissions and a cutting-edge Keihin motor administration framework with an adjusted throttle body and improved hardware bundle. The KTM 2019 125 SX Dirt Bike, KTM 150 SX, and KTM 250 SX all offer changed carburetor settings, with another transmission and new grasp in each among different enhancements. The feature KTM 450 SX-F model appreciates a recently created SOHC chamber head for diminished weight and improved mass centralization. Another camshaft with a shorter valve timing and improved surface alongside a low-contact chain manage with a DLC covering.

KTM 2019 125 SX Dirt Bike

Key Features

  • Newly revamped casings: Improved solidness and straight-line dependability.
  • New bodywork: More opportunity for development and improved caretaking with better ergonomics.
  • Newly molded Seat: It ensures better ergonomics and solace.
  • New fuel tanks: Improved ergonomics.
  • New grasp spread: Diminished motor width.
  • Newly planned ds grip: Extremely conservative and robust grasp framework, diminished motor width.
  • New 6 speed transmission: It especially made by panel-highest caliber and dependability.
  • Reworked carburetor: Its setting adjusted to the new airbox and fumes framework – improved throttle reaction and motor conduct.
  • New fumes funnel and suppressor:  Improved force conveyance and execution.
  • New suppressor: Its section of the suppressor – diminished weight.
  • Throttle gets together with simple free play modification like the 4-strokes.
  • Handlebar clips include an isolated lower cinch and scaffold type upper brace for more torsional solidness.
  • KTM’s “No Dirt” footpeg configuration prevents the pegs turn from getting stopped up, guaranteeing the footpeg is consistently in the right position.
  • ODI grasps that component of a lock-on plan for the left hold and a vulcanized grasp on the throttle side.
  • Super lightweight Galfer Wave rotors, CNC machined center points, top of the line Excel edges, and Dunlop GEOMAX MX3S tires.
  • Airbox and channel configuration furnish the most extreme execution with quick “no devices” air channel changes.
  • “No Dirt” move lever keeps dirt from fouling the switch joint to guarantee appropriate moving in any condition.

KTM 2019 125 SX Dirt Bike

KTM 2019 125 SX Dirt Bike – Technical Specifications


Type Single Cylinder, 2-Stroke
Displacement 124.8 cc
Bore / Stroke 54.0 / 54.5 mm
Starter Kickstarter
Transmission 6 Gears
Fuel System Mikuni TMX 38
Lubrication Premix 40:1
Primary Ratio 23:73
Final Drive 13:50
Cooling Liquid Cooling
Clutch Wet Multi-Disc DS Clutch, Brembo Hydraulics
Ignition Kokusan

Check out the latest engine accessories as follows.

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KTM 2019 125 SX Dirt Bike Specs


Frame Central Double-Cradle Type 25CrMo4 Steel
Sub Frame Aluminum
Handle bar Neken, Aluminum Ø 28/22 mm
Front Suspension WP Suspension AER 48 USD Ø 48 mm
Rear Suspension WP Monoshock 5018 BAVP DCC including Linkage
Suspension Travel Front/Rear 310 mm / 12.2 inches; 300 mm / 11.81 inches
Front/Rear Brakes Disc Brake 260 mm / 10.24 inches; 220 mm / 8.66 inches
Front/Rear Rims 1.60x 21 inches / 2.15 x 19 inches Excel
Front/Rear Tires 80/100-21 inches / 100/909100-19 inches Dunlop MX3S
Chain 5/8 x 1/4 inches
Silencer Aluminum
Triple Clamp Offset 22 mm
Wheelbase 1,485 mm ± 10 mm / 58.5 ± 0.4inches

Check out some of the chassis accessories as follows.

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KTM 2019 125 SX Dirt Bike Specs


Steering Head Angle 26.1º
Ground Clearance 375 mm / 14.8 inches
Seat Height 950 mm / 37.4 inches
Tank Capacity, Approx 7.5 L / 1.98 gallons
Weight (without fuel), Approx 87.5 kg / 192.92 lbs.

Experts recommend the use of safety gear during ride.

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KTM 2019 125 SX Dirt Bike Specs


The KTM 2019 125 SX Dirt Bike is the best 125cc production machine ever to go down a production line. If you want to have the best 125 on the track, the fast, light, agile, and essential 125SX is a must-have bike. If you’re looking for a fun 125 to ride on game days, the YZ125 will do the job for a lot less money. The crisp whip KTM 125 SX has been buzzing at the front for years. If it depends only on us, it stays there for many seasons to come.

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