2021 KTM SX 250

Stock #10512
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KTM 250 SX 2021
Whether its power-to-weight or power and control, the KTM 250 SX is the perfect combination of all that counts. Featuring a high-performance 2-stroke engine fitted within a state-of-the-art chassis, this powerhouse is undoubtedly the fastest 250 cc 2-stroke on track. This proven race weapon is the right choice for those who thrive on that glorious 2-stroke sound while smashing out one hot lap after the next.

ENGINE
The engine of the KTM 250 SX features the latest 2-stroke technology, with a counter-balance shaft for low engine vibration, as well as a reliable hydraulically operated DDS clutch. It has a twin-valve controlled power valve, which contributes massively to making the KTM 250 SX engine the most conpetitive 2-stroke in its class. Powering through its 5-speed transmission truly is an exhilarating experience.

FRAME
The frame is professionally crated from hydroformed chromium molybdenum steel tubes that are robot welded, ensuring the highest levels of consistent quality. The stiffness has been precisely tailored for the most dynamic handling, and works in perfect harmony with the suspension to provide nimble agility without losing high-speed stability. The frame also features no dirt footpegs, which have a simple but effective self-cleaning system that ensures the footpegs return to their original position, providing complete control in all conditions. All SX  frames feature the same highly durable powder coating as the KTM Factory machines and come with standard frame protectors. The subframe is made from lightweight aluminum, providing rear fender stability and stong support for the rider at little extra weight.

SEAT
All KTM SX models feature a seat that perfectly matches the range's dynamic performance-oriented ergonomics. The seat cover features silicone strips that provide better feel and grip for the rider. The seat is conveniently fixed to the bike using one long, lateral screw, making it easy to handle.

DECALS
The modern design and graphics ensure that it is not only about function, but an impressively fast and agressive look that sends a clear message to the competitors.

  • Status:
    New
  • Vehicle:
    2021 KTM 250 SX
  • VIN:
    VBKSXM233MM297717
  • Model Number:
    250 SX
  • Fuel Type:
    Gasoline
  • Engine:
    250cc, 2-Stroke, single cylinder Reed Valve, 0 valve, Single-Cylinder
  • Transmission:
    Manual
  • Stock Number:
    10512
  • Title:
    Clear
  • Location:
    Cascade Motorsports
  • Warranty:
    Manufacturer's w/ Extended Available

ENGINE

  • Bore (in):
    2.61
  • Bore (mm):
    66.4
  • Carburetion Brand:
    Mikuni
  • Carburetion Type:
    Carburetor
  • Carburetor Size (mm):
    38
  • Carburetor:
    Yes
  • Cooling:
    Liquid
  • Cylinders:
    1
  • Displacement (cc):
    249
  • Displacement (ci):
    15.2
  • Engine Stroke:
    2-Stroke
  • Engine Type:
    Single-Cylinder
  • Fuel Requirements:
    Premium
  • Fuel Type:
    Gas / Oil Premix
  • Number Of Carburetors:
    1
  • Starter:
    Kick
  • Stroke (in):
    2.83
  • Stroke (mm):
    72
  • 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:
    3.57
  • Gear Ratio (1):
    2
  • Gear Ratio (2):
    1.6
  • Gear Ratio (3):
    1.33
  • Gear Ratio (4):
    1.14
  • Gear Ratio (5):
    0.96
  • Number Of Speeds:
    5
  • Overdrive:
    Yes
  • Primary Drive (Rear Wheel):
    Chain
  • Transmission Type:
    Manual

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

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 110/90 R19 62M
  • Rear Tire Aspect Ratio:
    90
  • Rear Tire Speed Rating:
    M
  • Rear Tire Width:
    110
  • Rear Wheel Diameter:
    19
  • Rear Wheel Width (in):
    2.15
  • Tire Brand:
    Dunlop®
  • Tube / Tubeless:
    Tubed
  • Wheels Composition:
    Aluminum

EXTERIOR

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

SEATS

  • Number Of Seats:
    1
  • Seat Height (in):
    33.5
  • Seat Height (mm):
    850
  • Seat Location:
    Driver
  • Seat Material:
    Vinyl
  • Seat Type:
    One-Piece

STEERING

  • Steering Control:
    Handlebar

TECHNICAL SPECIFICATIONS

  • Dry Weight (kg):
    87.5
  • Dry Weight (lbs):
    192.9
  • Engine Displacement to Weight (cc):
    1.29
  • Fuel Capacity (gal):
    2
  • Fuel Capacity (l):
    7.5
  • Ground Clearance (in):
    14.8
  • Ground Clearance (mm):
    375
  • Wheelbase (in):
    58.5
  • Wheelbase (mm):
    1485

Our Location


Cascade Motorsports
20445 Cady Way
Bend, OR 97701