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MZ 125 SX
2017Off-road

MZ 125 SX

Key specifications

Engine
125 cc
Weight
87 kg
Fuel type
petrol
Fuel capacity
1.9 L
Transmission
6-speed
Seat height
38 mm
Front brakes
Single disc. Brake calipers on floating bearings
Rear brakes
Single disc. Brake calipers on floating bearings

Overview

Introducing the 2017 KTM 125 SX, a standout contender in the world of cross-motocross motorcycles. Renowned for its lightweight construction and agile handling, the 125 SX is designed for both budding enthusiasts and seasoned riders looking to dominate the track. KTM has a storied legacy in off-road performance, and this model is a testament to the brand’s commitment to innovation and excellence. With its striking orange, white, and black color scheme, the 125 SX not only performs exceptionally but also turns heads on the track. At the heart of the KTM 125 SX lies a potent 124.80 ccm single-cylinder, two-stroke engine. This powerhouse is engineered for exhilarating acceleration and responsiveness, making it the perfect partner for tight corners and rough terrains. The 54.0 x 54.5 mm bore and stroke configuration, combined with the Mikuni TMX carburettor and Kokusan EMS ignition system, ensure smooth power delivery across the rev range. Riders will appreciate the 6-speed gearbox that provides precise gear shifts, allowing them to harness the full potential of the engine while maintaining control. Coupled with liquid cooling, the 125 SX can handle the rigors of intense competition without breaking a sweat, giving riders the confidence to push their limits. The chassis of the 125 SX is nothing short of revolutionary, featuring a chrome-molybdenum steel central-tube frame that promotes stability and durability. With a rake angle of 26.5°, the motorcycle is designed for nimble handling, while the WP-USD AER 48 front suspension and WP shock absorber with linkage offer an impressive 300 mm of travel at both the front and rear, soaking up the roughest terrains. The robust braking system, equipped with single discs and calipers on floating bearings, offers reliable stopping power, ensuring safety and control at high speeds. Lightweight at just 87.2 kg (192.2 pounds) with a ground clearance of 375 mm (14.8 inches), the 125 SX is built for maneuverability and precision, making it a top choice for motocross riders. **

Pros

  • Lightweight and Agile: Weighing just 87.2 kg, the KTM 125 SX is designed for quick handling and easy maneuverability on the track.
  • Powerful Engine Performance: The single-cylinder, two-stroke engine offers exhilarating acceleration and responsiveness, ideal for competitive riding.
  • Advanced Suspension System: The WP suspension provides excellent travel and stability, enhancing off-road performance and rider comfort.

Cons

  • Kick Starter Only: The absence of an electric starter may be a drawback for some riders, particularly in challenging conditions.
  • Limited Fuel Capacity: With a 7-litre fuel tank, longer rides may require more frequent refueling, which could limit ride duration.
  • Higher Seat Height: At 960 mm, the seat height may be daunting for shorter riders, affecting their confidence and control when maneuvering.

Technical details

Source specification data

Make
KTM
Model
125 SX
Category
Cross-motocross
Starter
Kick
Color Options
Orange/white/black
Clutch
Multi-plate clutch, Brembo hydraulics
Gearbox
6-speed
Ignition
Kokusan EMS
Driveline
13:50. Primary drive: 23:73.
Engine Type
Reed intake.
Fuel System
Carburettor. Mikuni TMX
Bore X Stroke
54.0 x 54.5 mm (2.1 x 2.1 inches)
Displacement
124.80 ccm (7.62 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, two-stroke
Transmission Type Final Drive
Chain
Dry Weight
87.2 kg (192.2 pounds)
Seat Height
960 mm (37.8 inches) If adjustable, lowest setting.
Fuel Capacity
7.00 litres (1.85 gallons)
Ground Clearance
375 mm (14.8 inches)
Rake
26.5°
Wheels
C
machined hubs.
Excel
rims.
Wire
spoked.
Frame Type
Chrome-molybdenum steel central-tube frame
Rear Brakes
Single
disc.
Brake
calipers on floating bearings
Front Brakes
Single
disc.
Brake
calipers on floating bearings
Rear Suspension
WP shock absorber with linkage
Front Suspension
WP-USD, AER 48, Ø 48 mm
Rear Wheel Travel
300 mm (11.8 inches)
Front Wheel Travel
300 mm (11.8 inches)
Rear Brakes Diameter
220 mm (8.7 inches)
Front Brakes Diameter
260 mm (10.2 inches)

Available colors

Orange/white/black