2021 KTM 125 SX

Stock #139284
MSRP: $7,399
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Hi, my name is and I'm interested in this 2021 KTM SX 125 . I'm in the area and you can reach me at or by phone at .

KICKSTART YOUR RACING CAREER

The KTM 125 SX is the most compact and lightweight of the full-size bikes and delivers a confidence-inspiring ride like no other. A lightweight chassis teams up with the most competitive 125 cc 2-stroke engine in its class, delivering superior agility and power to fulfil the demands of any young adrenaline seeker. This 2-stroke screamer is the ultimate entry point into the pro ranks and a sure-fire way to add to the trophy collection.

  • Status:
    New
  • Vehicle:
    2021 KTM 125 SX
  • VIN:
    VBKSXH23XMM139284
  • Model Number:
    125 SX
  • Fuel Type:
    Gasoline
  • Engine:
    120cc, 2-Stroke, single cylinder Reed Valve, 0 valve, Single-Cylinder
  • Transmission:
    Manual
  • Color:
    Orange / White
  • Stock Number:
    139284
  • Title:
    Clear
  • Location:
    Sloans Motorcycle ATV, Murfreesboro, TN, 37129
  • Warranty:
    Manufacturer's w/ Extended Available

ENGINE

  • Bore (in):
    2.13
  • Bore (mm):
    54
  • Carburetion Brand:
    Mikuni
  • Carburetion Type:
    Carburetor
  • Carburetor Size (mm):
    38
  • Carburetor:
    Yes
  • Cooling:
    Liquid
  • Cylinders:
    1
  • Displacement (cc):
    124.8
  • Displacement (ci):
    7.6
  • Engine Stroke:
    2-Stroke
  • Engine Type:
    Single-Cylinder
  • Fuel Requirements:
    Premium
  • Fuel Type:
    Gas / Oil Premix
  • Number Of Carburetors:
    1
  • Starter:
    Kick
  • Stroke (in):
    2.15
  • Stroke (mm):
    54.5
  • Valve Configuration:
    Reed Valve

BRAKES

  • Brake Brand Name:
    Brembo®
  • Front Brake Diameter (in):
    10.2
  • Front Brake Diameter (mm):
    260
  • Front Brake Type:
    Hydraulic Disc
  • Rear Brake Diameter (in):
    8.7
  • Rear Brake Diameter (mm):
    220
  • Rear Brake Type:
    Hydraulic Disc

TRANSMISSION

  • Final Drive Ratio:
    3.85
  • Gear Ratio (1):
    2.46
  • Gear Ratio (2):
    2
  • Gear Ratio (3):
    1.65
  • Gear Ratio (4):
    1.4
  • Gear Ratio (5):
    1.21
  • Gear Ratio (6):
    1.09
  • Number Of Speeds:
    6
  • Primary Drive (Rear Wheel):
    Chain
  • Transmission Type:
    Manual

EXTERIOR

  • Body Material:
    Plastic
  • Chain Guard:
    Yes
  • Exhaust Guard:
    Yes
  • Foot Peg Location:
    Driver
  • Fork Guards:
    Yes
  • Frame:
    Chromium Molybdenum
  • Stand Type:
    Kick

SEATS

  • Adjustable:
    Yes
  • Number Of Seats:
    1
  • Seat Height (in):
    37.8
  • Seat Height (mm):
    960
  • Seat Location:
    Driver
  • Seat Material:
    Vinyl
  • Seat Type:
    One-Piece

STEERING

  • Steering Control:
    Handlebar

SUSPENSION

  • Front Adjustable Fork Pre-Load:
    Yes
  • Front Adjustable Rebound Damping:
    Yes
  • Front Suspension Brand Name:
    WP XACT
  • Front Suspension Size (in):
    1.9
  • Front Suspension Size (mm):
    48
  • Front Suspension Type:
    Inverted Fork
  • Front Travel (in):
    12.2
  • Front Travel (mm):
    310
  • Number Rear Shock Absorbers:
    1
  • Rear Adjustable Rebound Damping:
    Yes
  • Rear Adjustable Shock / Spring Pre-Load:
    Yes
  • Rear Suspension Brand Name:
    WP XACT
  • Rear Suspension Material:
    Aluminum
  • Rear Suspension Type:
    Twin Sided Swing Arm
  • Rear Travel (in):
    11.8
  • Rear Travel (mm):
    300

TECHNICAL SPECIFICATIONS

  • Fuel Capacity (gal):
    1.9
  • Fuel Capacity (l):
    7.2
  • Ground Clearance (in):
    14.8
  • Ground Clearance (mm):
    375
  • Wheelbase (in):
    58.5
  • Wheelbase (mm):
    1485

WHEELS & TIRES

  • Front Tire (Full Spec):
    Dunlop® GEOMAX MX3S 80/100 R21 51M
  • Front Tire Aspect Ratio:
    100
  • Front Tire Speed Rating:
    M
  • Front Tire Width:
    80
  • Front Wheel Diameter:
    21
  • Front Wheel Width (in):
    1.6
  • Rear Tire (Full Spec):
    Dunlop® GEOMAX MX3S 100/90 R19 57M
  • Rear Tire Aspect Ratio:
    90
  • Rear Tire Speed Rating:
    M
  • Rear Tire Width:
    100
  • Rear Wheel Diameter:
    19
  • Rear Wheel Width (in):
    2.15
  • Tire Brand:
    Dunlop®
  • Tube / Tubeless:
    Tubed
  • Wheels Composition:
    Aluminum

Our Location


Sloan's Motorcycle ATV
2233 NW Broad St
Murfreesboro, TN 37129

1Prices shown are not final and do not include sales tax, finance charges, vehicle registration fees, or any other fees required by law. Prices may be subject to changing incentives. If applicable, incentives may require a trade-in, financing, or other specific qualifications and restrictions. Reasonable efforts are made to keep information on this website accurate, but Dealer and/or its affiliates do not assume responsibility for omissions or for misprints or other errors displayed on this website. EPA mileage estimates are for newly manufactured vehicles only, so actual mileage will depend on how the vehicle is driven and maintained.