2016 KTM 125 SX
QLD • Private
4
CategoryMotocross 2 Stroke
Engine Size124cc 2 stroke
Comments from the seller
2-Stroke • Lightweight • Tuned • Lowered • Never Raced
⭐ Perfect junior/female/small rider MX bike – reliable, crisp and fast.
NOT INTERESTED IN TRADING SORRY
⸻
🏁 About the Bike
Selling my 2016 KTM 125 SX 2-stroke, professionally lowered and set up for racing – but has never actually been raced.
This bike is clean, tight, starts easy, and has always been well looked after.
The 125 SX is one of the most fun bikes KTM ever made – super light, amazing suspension, and heaps of power when you need it.
⸻
✅ Key Features & Upgrades
• 🔥 Lowered suspension – ideal for youth riders, smaller adults, or anyone wanting extra confidence
• 🧡 Ninetwo (92) Graphics Kit
• 🛠 Fresh top end (runs crisp and sharp)
• 💨 Expansion chamber in great condition
• ⚙️ ProTaper bars & grips
• 🏁 Performance exhaust setup
• 🚦 Starts first kick
• 🧼 Very tidy for age – plastics, seat, tyres all good
• 🦾 Leatt & KTM branded parts
• 🔩 Chain & sprockets in good condition
• ✔️ No leaks
• ✔️ No strange noises
• ✔️ No race wear or stress
⸻
🧡 Condition
The bike presents extremely well.
It’s been used for recreational riding only – never raced.
Suspension and motor feel solid, and the bike still has heaps of punch.
Perfect for:
• Junior stepping up to a full-sized bike
• Lighter adult wanting a fun, female, nimble 2-stroke
• Anyone wanting a fast + reliable KTM that doesn’t need money spent on it
Comes with tool kit and manuals
Bike details
øNetwork Id
SSE-AD-19955085
Bike
Motocross Manual 6sp 125cc
Body
Motocross 2 Stroke
Colour
Orange
Engine Capacity
124 cc
Cost of financeSponsored
Configuration
124.8cc, 2-stroke, Liquid cooled, Reed Valve, 1-cyl
Country of Origin
AUSTRIA
Roadworthy certificate
No
Details
Introduction
he whip cracking KTM 125 SX has been buzzing at the front for years. If it is up to us, it stays there for many more seasons to come. A compact build and the lowest weight out there team up for the win with a glorious 2-stroke engine, fitted in a state-of-the-art chassis. Get shredding, youngsters.
Bike Type
Motocross
Series
SX
Model Code
125 SX
LAMS Approved
False
Colours
KTM Orange/Black
Ride Away Price
False
Country of Origin
AUSTRIA
Grey Import
False
Is Limited Edition
False
Engine
Engine Description
125
Engine Config
Vertical
Engine Capacity
124cc
Engine Type
Piston
Engine Stroke
2
Bore
54mm
Stroke
54.5mm
Cam Type
Reed Valve
Cylinders
1
Induction System
Aspirated
Carburettor(s)
1
Carburettor
Mikuni TMX 38
Throttle Bore
38mm
Cooling
Liquid
Lubrication
Premix (2-stroke oil & petrol)
Exhaust Config
1 Into 1
Exhaust Description
Aluminium silencer
Start
Ignition
Electronic
Ignition Description
Kokusan EMS; Contactless; Digital ignition adjustment
Starter
Kick
Electrics
Battery Description
Lithium-ion
Fuel & Emissions
Fuel Type
Petrol
Recommended RON
98
Fuel Tank Capacity
7.0L
Transmission
Transmission Description
Claw shift
Drive Type
#520 Chain
Gear Type
Manual
Gear Number
6
Gear Change Method
Left foot lever
Clutch Type
Wet, Multi-disc, Hydraulic operation
Chassis & Suspension
Frame Material
Chrome molybdenum steel tubing
Frame Design
25CrMo4 steel central-tube frame
Handlebar Description
Black tapered Neken; Aluminium; Rubber damping clamp; Two mounting positions
Front Suspension
48mm WP Upside down 4CS closed cartridge fork
Front Suspension Travel
310.0mm
Rear Suspension
WP linkage monoshock
Rear Suspension Travel
300.0mm
Swingarm Type
Dual Sided
Swingarm Description
Cast aluminium
Brakes
Front Brake Description
Single GALFER petal disc; Brembo floating caliper; Hydraulic
Front Brake Diameter
260.0mm
Rear Brake Description
Single GALFER petal disc; Brembo floating caliper; Hydraulic
Rear Brake Caliper(s)
Single Piston
Rear Brake Diameter
220.0mm
ABS
Not Available
Linked Braking System
Not Available
Wheels & Tyres
Wheel Type
Black coated Excel rims; Laced-spokes; CNC machined hubs
Wheel Size Front
1.6x21"
Wheel Size Rear
2.15x19"
Rear Tyre
100/90-19" Dunlop Geomax MX 3S
Front Tyre
80/100-21" Dunlop Geomax MX 3S
Dimensions & Weights
Wheelbase
1485mm
Ground Clearance
375.0mm
Dry Weight
87.2kg
Seat Height
960mm
Seating Capacity
1
Safety & Security
Traction Control
Not Available
Convenience
Seating Position
Upright
Adjustable Seat
Not Available
Southern is the sellerLocation
Joyner, QLD 4500
Member since
2026
Verified information
Phone number
Get in touch with the seller
ø Specifications have been sourced from Automotive Data Services Pty Ltd (Redbook) and are based on manufacturer standard features and specifications, some of which may require subscription. Actual features and specifications for this vehicle may differ. Please confirm these details with the seller.
‡ This is an estimated figure calculated with reference to ADR 81/02 and is made on the assumption the vehicle is at maximum factory fuel/energy capacity. It does not take into account factors such as individual driving habits, terrains and driving conditions which may vary depending on the driver and the vehicle.
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