⟲ 360° — drag meThe facts.
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW R1250R (2018–2023) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 004 adds a fuel correction to the R1250R where the factory map had to be careful, and does it without a laptop, a dyno session or a remap.
Key Features
- BMW R1250R (2018–2023)
- 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
ShiftCam on the Roadster
The variable timing broadened the boxer's torque curve considerably, which suits a naked motorcycle better than it suited anything else in the range.
Warranty
A dealer will see an additional module the moment they lift the seat. On a motorcycle still inside its term the sensible course is to unplug it before an appointment, which takes minutes and leaves no trace at all.
On a Current Machine
Euro 5 mapping is tighter and better resolved than anything before it, which means the gains are smaller and mostly confined to the transition off a closed throttle.
Consumption in Practice
Some owners report a fraction more, some a fraction less. The honest answer is that the difference is inside the noise of how anybody actually rides, and no claim should be made about it.
Oxygen Sensor Interaction
Nothing is disconnected and nothing is simulated. The standard trim loop continues to operate in the band where it operates, and the module's correction sits on top of the result.
Riding at Part Throttle
Which is nearly all riding. A change confined to the first quarter of travel sounds minor and is felt constantly, which is the opposite of how most tuning parts work.
Not an Exhaust Substitute
A module changes fuelling, not gas flow. Riders hoping for the noise or the weight saving of an aftermarket silencer will be disappointed, because it does neither of those things.
Nothing Draws Current at Rest
The module is powered from the injector circuit and does nothing with the ignition off. There is no parasitic drain and no reason to disconnect it for storage.
Fitment and Compatibility
- BMW R1250R (2018–2023)
Specifications
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW R1250R (2018–2023) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- BMW R1250R (2018–2023)
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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.
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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.
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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.