⟲ 360° — drag meThe facts.
| Model | JP ES 046 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | KTM 1390 Super Adventure S (2025–2026) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP ES 046 closes the 1390 Super Adventure S's air injection ports with billet plugs.
Key Features
- KTM 1390 Super Adventure S (2025–2026)
- 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 Mechanical Side
Reed housings on both heads, hoses to the airbox and the clips holding them. None of it is touched by an electrical eliminator.
A New Dashboard
KTM redrew the interface with the 1390, adding connectivity and a clearer layout. It is the most usable dashboard the company has produced.
Reeds and Heat
A plastic housing on a cylinder head takes the widest temperature swing on the bike. Cracks follow, and after that exhaust gas reaches the airbox.
Turned From Billet
A solid plug with an O-ring in a machined groove. Nothing inside it moves and nothing needs inspecting again.
Both Heads
The V-twin carries the arrangement twice and both sides have to be capped.
A Nineteen Inch Front
Cast wheels and a smaller front rim make the S considerably more precise on tarmac than the R. For most owners that is the correct choice.
Before a Remap
Unmetered air after combustion makes exhaust gas readings describe the plumbing rather than the engine.
Original Fasteners
KTM's own bolt positions and torque figures, with nothing drilled or tapped.
The Solenoid
Watched independently by the controller and handled by the electrical eliminator.
Homologation
Emissions hardware is part of the approval and removing it ends road legality across Europe.
CAMshift
KTM's variable intake timing arrived with the 1390 and widened a powerband that was already broader than most riders use. It is the most significant change the company has made to the LC8 in a decade and it shows most at the speeds people actually ride at.
Cast Wheels and a Nineteen Inch Front
The S is the version for riders whose off-road ambition stops at a gravel car park, which is most owners and there is nothing wrong with that. The smaller front rim makes it considerably more precise on tarmac than the R and the difference shows on any road with corners.
Fitment and Compatibility
- KTM 1390 Super Adventure S (2025–2026)
Specifications
| Model | JP ES 046 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | KTM 1390 Super Adventure S (2025–2026) |
| 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 Adventure S (2025–2026)
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