⟲ 360° — drag meThe facts.
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Aprilia Mana 850 GT (2009–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 004 is the simpler of JetPrime's two fuel units for the Mana 850 GT: a curve somebody else worked out, rather than one the owner has to develop.
Key Features
- Aprilia Mana 850 GT (2009–2016)
- 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
A Motorcycle With No Gears
Aprilia gave the Mana a continuously variable transmission, which means the engine sits at whatever speed the electronics choose rather than where the rider put it.
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.
The Diagnostic Question
Because the original controller is untouched, its fault memory stays honest. Anybody who has chased a fault on a motorcycle with a flashed controller understands why that matters.
Legal Position
Where fuelling forms part of the approval, changing it takes the machine outside its approved condition. That is a matter of local rules and it is worth knowing before rather than after.
Approval and Local Rules
Fuelling forms part of the emissions approval in most European markets. Changing it moves the motorcycle outside its approved state, which is worth understanding rather than discovering.
Before a Dealer Visit
Most owners unplug it. It takes five minutes, leaves the connectors as they were and removes a conversation that is easier avoided than had.
The Airbox Lid
Owners sometimes drill or remove it hoping for the same result. That changes airflow without changing fuel and generally makes the mixture problem worse rather than better.
The Cost of Doing Nothing
A motorcycle with an aftermarket exhaust and a standard map is not damaged, only running further from ideal than it needs to. Plenty of owners live with that quite happily for years.
Fitment and Compatibility
- Aprilia Mana 850 GT (2009–2016)
Specifications
| Model | JP MJ 004 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Aprilia Mana 850 GT (2009–2016) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- Aprilia Mana 850 GT (2009–2016)
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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.
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.