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2021 KTM SX 150

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Details

KTM 150 SX 2021
With the agility of a 125 and a healthy dose of extra power, the KTM 150 SX is a lively package ready to take on the 250 cc 4-strokes. From within its dynamic lightweight chassis, the compact engine produces class-leading torque and power. Everything about this motorcycle screams high-performance fun and it goes into battle as the ultimate on-track competitor.

ENGINE
The pure exhilaration that this bike's engine delivers warranted continued production. As it shares many of its key components with the class-leading 125, the cylinder, cylinder head and piston unit can now also be fitted on a 125 cc engine base, converting it to a 125 SX without having to replace the crankshaft. Compact and powerful, this innovative 2-stroke engine is a lightweight powerhouse that just makes perfect sense.

FRAME
The frame is professionally crafted from hydro-formed 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 strong 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 new graphics suit the aggressive nature of the bike and further enhance the high performance look of the bodywork.

 

Engine

  • Engine Type:
    Single-Cylinder
  • Cylinders:
    1
  • Engine Stroke:
    2-Stroke
  • Cooling:
    Liquid
  • Valve Configuration:
    Reed Valve
  • Bore (mm):
    58
  • Bore (in):
    2.28
  • Stroke (mm):
    54.5
  • Stroke (in):
    2.15
  • Displacement (cc):
    143.9
  • Displacement (ci):
    8.8
  • Starter:
    Kick
  • Fuel Requirements:
    Premium
  • Fuel Type:
    Gas / Oil Premix

Brakes

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

Carburetion

  • Carburetion Brand:
    Mikuni
  • Carburetor:
    Yes
  • Number Of Carburetors:
    1
  • Carburetor Size (mm):
    38
  • Carburetion Type:
    Carburetor

Dimensions

  • Wheelbase (in):
    58.5
  • Wheelbase (mm):
    1485
  • Ground Clearance (in):
    14.8
  • Ground Clearance (mm):
    375

Other

  • Fuel Capacity (gal):
    2
  • Fuel Capacity (l):
    7.5
  • Frame:
    Chromium Molybdenum
  • Body Material:
    Plastic
  • Radiator Cover:
    Yes
  • Fork Guards:
    Yes
  • Exhaust Guard:
    Yes
  • Foot Peg Location:
    Driver
  • Front Suspension Type:
    Inverted Fork
  • Front Suspension Size (in):
    1.9
  • Front Suspension Size (mm):
    48
  • Front Travel (in):
    12.2
  • Front Travel (mm):
    310
  • Front Adjustable Fork Pre-Load:
    Yes
  • Front Adjustable Rebound Damping:
    Yes
  • Front Suspension Brand Name:
    WP XACT
  • SysModelID:
    106928
  • MfrModelID:
    150 SX
  • Year:
    2021
  • Manufacturer:
    KTM
  • Model Name:
    SX
  • Trim Name:
    150
  • Family Name:
    SX
  • Product Type:
    Motorcycle / Scooter
  • Manufacturer Type:
    MX
  • Generic Type (Primary):
    Off-Road
  • Manufacturer Country:
    Austria
  • Photo Name:
    2021_KTM_SX_150.jpg
  • Major Revision Year:
    2019
  • Revision Status:
    Carryover
  • Competitor Code:
    MOT21OAF000
  • Manufacturer Recommend Minimum Age:
    16
  • SysTrimId:
    327622
  • SysMakeId:
    21
  • IsCurrent:
    Yes
  • Historical ID:
    290630
  • Data Provider:
    CRS
  • Parent Company:
    KTM
  • Display Name:
    150 SX
  • Engine Displacement to Weight (cc):
    0.75
  • Currency:
    US Dollars
  • Warranty (Months):
    1
  • Destination Charge:
    450
  • Warranty (Condition):
    Limited
  • Rear Suspension Type:
    Twin Sided Swing Arm
  • Rear Travel (in):
    11.8
  • Rear Travel (mm):
    300
  • Rear Adjustable Shock / Spring Pre-Load:
    Yes
  • Rear Adjustable Rebound Damping:
    Yes
  • Number Rear Shock Absorbers:
    1
  • Rear Suspension Brand Name:
    WP XACT
  • Rear Suspension Material:
    Aluminum
  • Seat Type:
    One-Piece
  • Seat Material:
    Vinyl
  • Seat Location:
    Driver
  • Seat Height (in):
    33.5
  • Seat Height (mm):
    850
  • Number Of Seats:
    1
  • Stand Type:
    Kick
  • Steering Control:
    Handlebar
  • Top Crown Material:
    Aluminum
  • Tire Brand:
    Dunlop®
  • Front Tire Width:
    80
  • Front Tire Aspect Ratio:
    100
  • Front Tire Speed Rating:
    M
  • Front Wheel Diameter:
    21
  • Rear Tire Width:
    100
  • Rear Tire Aspect Ratio:
    90
  • Rear Tire Speed Rating:
    M
  • Rear Wheel Diameter:
    19
  • Front Tire (Full Spec):
    Dunlop® GEOMAX MX3S 80/100 R21 51M
  • Rear Tire (Full Spec):
    Dunlop® GEOMAX MX3S 100/90 R19 57M
  • Wheels Composition:
    Aluminum
  • Tube / Tubeless:
    Tubed
  • Front Wheel Width (in):
    1.6
  • Rear Wheel Width (in):
    2.15

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