Specs
- New or used
- New
- Availability
- In stock
- Colour
- Orange
- Displacement
- 125 ccManufacturer specDealer: 124.8 cc
- Cylinders
- 1Manufacturer specDealer: Single
- Engine cycle
- Two-strokeManufacturer specDealer: 2-stroke
- Fuel
- GasManufacturer spec
- Transmission
- ManualManufacturer specDealer: 6-speed
- Seat height
- 37.7 inManufacturer specDealer: 37.7 in. (958 mm)
- Ground clearance
- 14.1 inManufacturer specDealer: 14.1 in. (359 mm)
- Dry weight
- 202.8 lbManufacturer specDealer: Without fuel - 202.8 lb. (92 kg)
- Fuel capacity
- 1.9 galManufacturer specDealer: Tank capacity (approx.) - 1.9 gal. (7.2 l)
- Model code
- F6101027
- VIN
- VBKSXG238VM182498
- Stock #
- KT0990
All details from the dealer (9)
- Model Type
- Motocross
Brakes/Wheels/Tires
- Brakes
- Front / Rear - DiscManufacturer spec
Drivetrain
- Primary Drive
- 23:73Manufacturer spec
- Chain
- 520, non-sealedManufacturer spec
Engine
- Clutch
- Wet multi-disc DS, Brembo hydraulics Primary drive teeth - 73 Operation - Brembo hydraulicsManufacturer spec
- Fuel System
- Fuel-mixture generation - Keihin EFI, throttle body 1.5 in. (39 mm) EMS - Vitesco technologies EMSManufacturer spec
Operational
- Frame
- Design - Central double-cradle-type 25CrMo4 steel Rear subframe design - Aluminum-reinforced polyamideManufacturer spec
- Front Suspension
- WP XACT-USD (AER), Ø 1.9 in. (48 mm) Travel - 12.2 in. (310 mm) Adjustment - Compression (high and low speed), reboundManufacturer spec
- Rear Suspension
- WP XACT monoshock with linkage Travel - 11.8 in. (300 mm) Adjustment - Compression and rebound adjustableManufacturer spec
From the dealer's page
There are very few sounds that can't be beaten: the crack of a soda can on a blistering hot day, the ping of the perfectly executed golf shot, and the scream of a 125 cc 2-stroke full throttle. The KTM 125 SX takes its leads directly from the KTM Factory Racing team for pure performance, pure results. Like the sound it makes, you won't forget it.
Price history
Tracked since Oct 4, 2026 · last checked 3d ago
Timeline
First seen
Oct 4, 2026
Market context
Comp set: 2025–2029 KTM 125 SX · 15 listings
- Median asking
- $8,449
- across 14 comparable listings
- This one
- $8,449
- 0.0% vs median
- Days on market
- 4d
- segment median 9d on Throttle before leaving
- Left dealer sites
- 1
- comparable listings gone from dealer sites, or marked sold; not sales
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