JetPrime JP ES 046 KTM — SLS/AIS Block-Off Plate — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ES 046
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsKTM 1390 Super Duke R (2024–2026)
InstallationPlug-and-play, no wiring harness modifications required
FitmentKTM 1390 Super Duke (2024–2026) / KTM 1390 Super Duke R (2024–2026) / KTM 1390 Super Duke R EVO (2024–2026)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

The JP ES 046 closes the 1390 Super Duke R's air injection ports with billet plugs on O-ring seals.

Key Features

  • KTM 1390 Super Duke R (2024–2026)
  • Caps the air injection port in the head
  • Turned from solid billet
  • Sealed with an O-ring, no jointing compound
  • Uses KTM's own fastener positions
  • Standard housing refits at any time

The Housings

A reed assembly on each cylinder head with a hose from the airbox. They admit air on every closed throttle and nothing else.

A Hundred and Ninety Horsepower

KTM has taken the naked class further than any road can absorb. The chassis and the electronics are what make the figure usable.

A New Frame

The 1390 gained a revised chassis with different flex characteristics. KTM chases feedback rather than outright stiffness, which is why these bikes talk to the rider.

Why Billet

Plastic on a cylinder head has a limited life and improvised plugs leak. A turned cap on an O-ring outlasts the engine.

Both Heads

The V-twin carries the arrangement twice and both sides have to be capped.

A Dyno Regular

Super Dukes are exhausted and remapped more than most motorcycles. Air entering after combustion makes those readings worthless.

Under Warranty

The 1390 is current, so a reversible part on original fasteners is the only sensible approach.

Original Positions

KTM's own bolt spacing and torque values, with nothing drilled anywhere.

The Solenoid Circuit

Still watched by the controller and handled by the electrical eliminator.

Homologation

Emissions equipment belongs to the approval and removing it ends road legality in Europe.

Nowhere Left for the Class to Go

A hundred and ninety horsepower in a chassis with wide bars and no fairing is more than any public road can absorb, and KTM has spent two generations demonstrating that the number was never the point. What makes the 1390 remarkable is how calm it is at the speeds people use.

Still in Its First Ownership

Most 1390 Super Dukes are barely run in, which changes what an owner should be willing to fit to one. A part that mounts on the factory fasteners and comes off again in minutes protects the warranty position on everything else, and that is worth more than any claimed gain.

Fitment and Compatibility

  • KTM 1390 Super Duke R (2024–2026)

Specifications

Model JP ES 046
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits KTM 1390 Super Duke R (2024–2026)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x block-off plate
FitmentWhich bikes this fits
  • KTM 1390 Super Duke R (2024–2026)
07 · Support

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08 · Paddock

Before you go.

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