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
- Transmission
- ManualManufacturer specDealer: 6-speed
- Mileage
- 1 mi
- Seat height
- 37.7 inManufacturer specDealer: 37.7 in. (958 mm)
- Wheelbase
- 58.7 inManufacturer specDealer: 58.7 in. (1,493 mm)
- Ground clearance
- 14.1 inManufacturer specDealer: 14.1 in. (359 mm)
- Dry weight
- 203.7 lbManufacturer specDealer: Without fuel - 203.7 lb. (92.4 kg)
- Fuel capacity
- 1.9 galManufacturer specDealer: Approx. - 1.9 gal. (7.2 l)
- Model code
- F6101Y0
- VIN
- VBKSXG235SM157506
- Stock #
- K57506
All details from the dealer (16)
- Badge
- On Sale
- Model Type
- Motocross
Brakes/Wheels/Tires
- Brakes
- Front - 260 mm disc diameter Rear - 220 mm disc diameterManufacturer spec
- Wheels
- SpokedManufacturer spec
- Rims
- AluminiumManufacturer spec
Drivetrain
- Chain
- 520, non-sealedManufacturer spec
Engine
- Bore x Stroke
- 2.1 x 2.1 in. (54 x 54.5 mm)Manufacturer spec
- Clutch
- Wet multi-disc DS, Brembo hydraulicsManufacturer spec
- Fuel System
- Vitesco Technologies EMS Fuel-mixture generation - Keihin EFI, throttle body 1.5 in. (39 mm)Manufacturer spec
- Exhaust
- Silencer - AluminumManufacturer spec
- Starting
- ElectricManufacturer spec
Operational
- Frame
- Central double-cradle-type 25CrMo4 steel Rear subframe design - Aluminum-reinforced polyamideManufacturer spec
- Front Suspension
- WP XACT-USD (AER), Ø 48 mm Travel - 12.2 in. (310 mm)Manufacturer spec
- Rear Suspension
- WP XACT monoshock with linkage Travel - 11.8 in. (300 mm)Manufacturer spec
- Rake
- 63.9°Manufacturer spec
- Handlebars
- Neken, aluminum Ø 1.1 / 0.8 in. (28 / 22 mm)Manufacturer 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 charging down a long straightaway. The 2025 KTM 125 SX takes its leads directly from the Factory Racing team and puts them to work like nothing else. Like the sound it makes, it cannot be beaten.
Price history
Tracked since Oct 4, 2026 · last checked 4d ago
Price details as printed by the dealer
- On Sale$6,999
- Documentation Fee+ $260
- Destination & Assembly+ $799
Throttle does not add these up.
Not enough observations yet — the chart appears after the second crawl of this listing.
Timeline
First seen
Oct 4, 2026
Market context
Comp set: 2023–2027 KTM 125 SX · 22 listings
- Median asking
- $7,534
- across 20 comparable listings
- This one
- $6,999
- -7.1% 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
Throttle+
Deal reasons — where this asking price sits against similar listings, with the sample behind it
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