⟲ 360° — drag meThe facts.
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW R nineT (2014–2024) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 004 is a two hundred gram module for the R nineT that does one thing: it lengthens or shortens the injector pulse the standard controller decided on.
Key Features
- BMW R nineT (2014–2024)
- Preset fuel module, no programming required
- Corrects the mixture without remapping the original electronics
- Plug-and-play with model-specific wiring
- Around 200 g, fitted in an evening
- Unplugs at any time, nothing is written to the motorcycle
The Last Air-Cooled Boxer
BMW kept the oil and air cooled twin alive for the nineT long after the rest of the range had moved on. Its fuelling is simpler and rather more characterful for it.
Where It Lives
Under the seat or beneath the tank on most machines, cable-tied where it cannot chafe and where water does not collect. Two hundred grams in that position affects nothing about how the motorcycle handles.
Under the Seat
That is where most owners put it, because it is dry, out of sight and close to the injector harness on the majority of machines. A cable tie and five minutes of thought is the whole of the installation advice.
The Standard Electronics Are Untouched
No parameter is written, no memory is cleared and no adaptation is reset. That is the difference between adding a module and reflashing a controller, and it is the reason this is reversible in a minute.
No Settings to Get Wrong
A preset curve cannot be misconfigured, cannot be lost when a battery is disconnected and cannot be blamed for a fault six months later. That reliability is the argument for buying the simpler of the two units.
The Mechanism, Once More
An injector is a valve that opens for a measured time. Fuel quantity is that time. A module intercepts the instruction and lengthens or shortens it, and everything else about the motorcycle carries on unchanged.
A Note on Dyno Runs
A power run measures full throttle from low revs to the limiter. That is one line through a map with hundreds of cells, and it is not the line this module was designed to change.
A Product With No Story
It is plugged in, it works, and there is nothing further to report. That is an unusual thing to say about an electronic accessory and it is the best thing about this one.
Fitment and Compatibility
- BMW R nineT (2014–2024)
Specifications
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW R nineT (2014–2024) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- BMW R nineT (2014–2024)
Questions, one topic at a time.
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Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.