⟲ 360° — drag meThe facts.
| Model | JP CJP 042B |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW F 800 ST (2006–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP CJP 042B manages injector opening time on the F 800 ST across a full two-axis map, programmed on a PC and stored as a file the owner keeps.
Key Features
- BMW F 800 ST (2006–2016)
- Fully programmable fuel map, written on a PC
- Complete two-axis management: engine speed and load
- For engines with an aftermarket exhaust or air filter
- Plug-and-play with model-specific wiring
- Unplugs at any time, nothing is written to the motorcycle
The Touring Variant
A taller screen, a more upright bar and the same belt-driven twin. The ST is the version people actually rode long distances on.
Racing Modifications
The manufacturer's own words: exhaust systems and air filters. Those are the changes that move the mixture furthest, and this unit exists to follow them properly rather than approximately.
Mounting the Unit
Under the seat or beneath the tank, secured and dry, with the USB connection reachable without dismantling half the motorcycle. That last point is worth thinking about before the cable ties go on.
Reversible Means Reversible
Unplug the unit, mate the original connectors and every trace is gone. Nothing was written to the motorcycle and nothing needs restoring.
Nothing Is Written to the Motorcycle
The original controller keeps its map, its adaptations and its fault memory. Everything this unit does lives in the unit and leaves with it.
An Afternoon to Fit
Connectors, a position, cable ties. The mechanical work is the same as for the preset module and it is the least demanding part of owning this unit.
On a Track Bike
The clearest case. No catalyst, a full system, a known fuel and a rider who visits every part of the map. That is what this unit was drawn for.
On a Four
Smoother by nature, which hides small errors and makes methodical measurement more important. What cannot be felt still shows on a wideband.
Against Reflashing
A remap of the original controller reaches ignition, the limiter and the rider aids, and it is written into the motorcycle where a workshop will find it. This is narrower, reversible and belongs to the box rather than the bike.
Fitment and Compatibility
- BMW F 800 ST (2006–2016)
Specifications
| Model | JP CJP 042B |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | BMW F 800 ST (2006–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x control unit
FitmentWhich bikes this fits▼
- BMW F 800 ST (2006–2016)
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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.