⟲ 360° — drag meThe facts.
| Model | JP MJ 001 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Ducati SuperSport 939 S (2017–2020) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 001 plugs into the SuperSport 939 S's injector harness on its own connectors, leaving the loom untouched and the whole change reversible in a minute.
Key Features
- Ducati SuperSport 939 S (2017–2020)
- 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
Ohlins and a Shifter
The S specification adds suspension and a quickshifter to the same engine, which is where most of the price difference sits.
Against a Full Remap
Flashing the original controller changes ignition timing, rev limits and rider aids as well as fuelling, and it needs specialist equipment. A module is narrower, cheaper and reversible in a minute, which suits an owner who wants one problem solved.
Nothing to Service
There is no interval, no filter and nothing to inspect. The module is sealed and it either works or it does not, which after the first ride it demonstrably does.
Mounting It Properly
Somewhere dry, secured, and where the harness is not stretched or pinched by the subframe. Ten minutes of care here is the difference between a component that lasts and one that develops an intermittent fault.
A Narrow Tool, Used Precisely
The module has exactly one lever: how long each injector stays open. Everything the product achieves comes from applying that lever at the right load and the right engine speed, which is knowledge rather than hardware.
Invisible to the Rider Aids
Traction control and the rest read wheel speeds, lean angle and throttle position. None of them can see an injector pulse being lengthened.
The Question to Ask Yourself
Does the motorcycle irritate at small throttle openings? If the answer is yes, this is the cheapest thing that addresses it. If the answer is no, nothing here applies.
A Note for Workshops
The module is visible under the seat and unplugs in seconds. Any diagnosis on the motorcycle should begin by removing it, which takes less time than reading this paragraph.
Fitment and Compatibility
- Ducati SuperSport 939 S (2017–2020)
Specifications
| Model | JP MJ 001 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Ducati SuperSport 939 S (2017–2020) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- Ducati SuperSport 939 S (2017–2020)
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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.