2025 KTM 125 SX
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$5,999
Dirt BikeNewNew to ThrottleSM157464
BENTLEY'S YAMAHA-SUZUKI· Murrysville, PA
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
- 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
- Stock #
- N/A
All details from the dealer (18)
- Badge
- On Sale
- Stock Number
- N/A
- Model Type
- Motocross
General Information
- Stock Number
- N/AManufacturer spec
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 12, 2026 · last checked 3h ago
LIMITED DATA: one listed price so far (Oct 12, 2026)
- PREMIER POWER SPORTS (this listing)
Prices as listed by dealers; auction results labelled; a dashed gap = no listed price.
Timeline
First seen
Oct 12, 2026
Market context
Comp set: 2023–2027 KTM 125 SX · 32 listings
- Median asking
- $7,949
- across 29 comparable listings
- This one
- $6,199
- -22.0% vs median
- Days on market
- New to Throttle
- 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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