JetPrime JP CJP 172B Benelli Leoncino 500 — Programmable Control Unit — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP CJP 172B
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsBenelli Leoncino 500 (2017–2024)
InstallationPlug-and-play, no wiring harness modifications required
DescriptionThe whole story

The JP CJP 172B is the fuel controller for a Leoncino 500 whose engine has been modified far enough that the standard closed-loop correction has run out of authority.

Key Features

  • Benelli Leoncino 500 (2017–2024)
  • 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 Little Lion

Benelli revived a name from the fifties for a 500 cc twin roadster aimed at riders who wanted Italian styling at a Chinese price.

The Original Electronics Are Untouched

Ignition timing, the rev limiter, traction control and every riding mode stay with the standard controller. This unit manages fuel quantity and has no access to anything else.

Sharing Maps

Owners of identical motorcycles with identical exhausts trade map files. It is a reasonable starting point and a terrible finishing point, because no two engines are identical.

The Exhaust Comes First

Fit the silencer, ride it, then map. Mapping around a system that is about to be replaced is work that has to be done twice.

Cell Blending

A correction in one cell affects its neighbours through interpolation. Maps that look smooth on screen feel smooth on the road, and jagged ones announce themselves immediately.

Measure or Guess

There is no third option. A wideband sensor turns mapping into engineering; without one it is an expensive way to develop opinions about an engine.

Logging Software

A wideband with a logging output turns a road ride into data. Analysing it afterwards is safer and more productive than reading a display at speed.

The Value of Repeating a Run

Any single measurement can be wrong. Two runs that agree are data; one run is an anecdote, and maps built on anecdotes behave like it.

What a Session Actually Looks Like

A quiet road or a dyno, a laptop connected, a wideband reading logged, one region of the map adjusted, then the same run repeated to see whether the number moved. Three or four rounds of that fill an evening.

Fitment and Compatibility

  • Benelli Leoncino 500 (2017–2024)

Specifications

Model JP CJP 172B
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Benelli Leoncino 500 (2017–2024)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x control unit
FitmentWhich bikes this fits
  • Benelli Leoncino 500 (2017–2024)
07 · Support

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08 · Paddock

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