JetPrime JP ESR 004 Aprilia — Electronic Suspension ECU Emulator — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandJetPrime
Part numberJP ESR 004
FunctionEmulates the electronic suspension control unit
TypeElectronic Suspension ECU Emulator
InstallationPlug-and-play, no modification to the original wiring
FitmentAprilia RSV4 (2021–2026) / Aprilia RSV4 Factory (2020–2026) / Aprilia Tuono V4 1100 (2021–2026) / Aprilia Tuono V4 1100 Factory (2019–2026)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

Behind the forks, the shock and the damper sits the control unit that drives all three. JP ESR 004 emulates it — which is what allows the whole semi-active system, control unit included, to leave the motorcycle.

Key Features

  • For RSV4 and Tuono V4 Factory models with Öhlins electronic suspension, 2019–2026
  • Emulates the suspension control unit itself
  • Lets the control unit be removed, not just the actuators
  • Clears the dashboard errors that removal would otherwise produce
  • Plug-and-play on the main suspension loom connector
  • The deepest of the four eliminators in this range

What Makes This One Different

The other three eliminators answer for individual actuators — a fork, a shock, a damper. This one answers for the module that commands them and reports to the main ECU. With it fitted, the control unit and its harness can come off the bike entirely rather than staying in place doing nothing. On a race build that is real weight and one fewer thing to damage in a crash.

Order of Conversion

Most riders arrive here last. The usual path is conventional forks first, then the shock, then the damper — and only once all three are mechanical does removing the control unit make sense. Fitting this emulator while electronic components are still on the bike will simply stop them working.

Fitting It

The control unit lives under the tail on most Factory models. Unplug its main connector, remove the unit and its harness, and plug the emulator into the loom side. Confirm the dashboard is clean before the bodywork goes back on.

Fitment and Compatibility

  • Aprilia RSV4 Factory with Öhlins electronic suspension (2019–2026)
  • Aprilia Tuono V4 1100 Factory with Öhlins electronic suspension (2019–2026)

Road Approval

None. Closed-circuit and competition use only.

Specifications

  • Brand: JetPrime
  • Part number: JP ESR 004
  • Type: Electronic suspension ECU emulator
  • Function: emulates the electronic suspension control unit
  • Installation: plug-and-play, no modification to the original wiring
  • Fitment: Aprilia RSV4 / Tuono V4 Factory with Öhlins electronic suspension (2019–2026)
  • Road approval: none — closed-circuit and race use only
FitmentWhich bikes this fits
  • Aprilia RSV4 (2021–2026)
  • Aprilia RSV4 Factory (2020–2026)
  • Aprilia Tuono V4 1100 (2021–2026)
  • Aprilia Tuono V4 1100 Factory (2019–2026)
07 · Support

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08 · Paddock

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