KTM 125 GS Enduro (1990 – 96)

KTM 125 GS Enduro (1990 - 96)

The KTM 125 GS Enduro, born from the marriage of cross-country speed and agility, has finally reached a point where its design and mechanics have been optimized to satisfy even the most discerning riders. Gone are the days of compromise between cross and enduro machines, as KTM presents its first 125cc enduro model directly derived from its ultra-competitive cross-country bike.

The 125cc engine, once a significant departure from the cross-country model, has undergone significant changes to make it more suitable for enduro riding. Weight has been shed, with over 10kg lost, and the bike’s handling and performance have been transformed.

On a cross-country terrain, the KTM 125 GS Enduro holds its own against the best of the breed, only faltering in terms of suspension and ease of use. However, in the realm of enduro, the rear suspension is subject to different stresses, and KTM’s engineers have worked their magic to tailor the engine to this specific discipline. By adding a bit of inertia courtesy of a heavier magnetic voltmeter, and tweaking the carburetion, the engine has gained the needed ease of handling without sacrificing its impressive performance capabilities.

In addition to the bespoke enduro-specific bodywork, the bike has been treated to a longer centerstand, a slightly reduced wheelbase, and a shorter suspension travel. The gear ratios and secondary gearing have been revised for enduro use, making this bike a true contender in the world of off-road racing. The KTM 125 GS Enduro is a testament to KTM’s commitment to innovation and performance, and it is poised to make a significant impact in the world of enduro racing.

Key Specifications

Engine TypeTwo stroke, single cylinder
Engine Capacity7.5 cubic inches / 122.6 cc
Fuel Tank Capacity2.4 US gallons / 9.3 L
Weight (Wet/Kerb)240.3 lbs / 109 kg
KTM 125 GS Enduro (1990 - 96)

All Specifications

Make & Model

ModelKTM 125 GS Enduro
Year1990 – 96

Engine

Engine TypeTwo stroke, single cylinder
Displacement7.5 cubic inches / 122.6 cc
Bore x Stroke54.0 x 54.0 mm
Compression Ratio14.0:1
Engine Management SystemBing 35 mm or Dell’Orto 36 mm carburetor
Cooling SystemLiquid cooled

Performance

Top Speedn/a

Transmission

Gearbox6 Speed
Final DriveChain

Electrical & Electronics System

StarterKick

Chassis & Suspension

Front Suspension40 mm Marzocchi fork
Rear SuspensionPro lever, WP monoshock

Wheels & Brakes

Front Tire Size3.00 x 21
Rear Tire Size4.60 x 18
Front BrakesDrum, 130 mm
Rear BrakesDrum, 130 mm

Dimension & Weights

Overall Length2175 mm / 85.6 in
Overall Width950 mm / 37.8 in
Overall Height1470 mm / 57.9 in
Ground Clearance350 mm / 13.8 in
Fuel Tank Capacity2.4 US gallons / 9.3 L
Wet (kerb/curb) Weight240.3 lbs / 109 kg
Dry Weight98 kg / 216 lbs

Features

  • Nouveau modèle enduro directement dérivé d’une machine de cross ultra compétitive
  • Poids réduit de plus de 10 kilogrammes par rapport à l’ancien modèle
  • Comportement transformé en maniabilité et en performances
  • Suspension arrière adaptée pour l’enduro
  • Moteur révisé avec un peu d’inertie ajoutée grâce à un volant magnétique plus lourd
  • Carburation retouchée pour une facilité de conduite améliorée
  • Performances maximales peu affectées
  • Habillage spécifique à l’enduro
  • Béquille centrale et centimètre d’empattement ajoutés
  • Fourche avec un débattement réduit de deux centimètres
  • Rapports de boîte et démultiplication secondaire revus pour une utilisation enduro
  • GS et MX partagent des caractéristiques similaires, mais les rapports de boîte de la GS sont plus espacés
  • Selle non trop haute, commandes tombant bien sous la main
  • Moteur démarrant facilement grâce à un kick peu démultiplié
  • Temprement de feu de la MX toujours présent, même si l’on peut noter une légère assouplissement

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