JetPrime JP ES 008 Aprilia — Clutch Switch Eliminator — view 1
02 · Data & docs

The facts.

Technical data
ModelJP ES 008
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsAprilia RSV4 (2021–2026)
InstallationPlug-and-play, no wiring harness modifications required
FitmentAprilia RSV4 (2021–2026) / Aprilia RSV4 Factory (2021–2026)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

The JP ES 008 bridges the RSV4's clutch lever switch so the engine starts with a lever assembly that has none.

Key Features

  • Aprilia RSV4 (2021–2026)
  • Bridges the clutch lever switch electrically
  • The engine starts without the lever pulled
  • Plugs into Aprilia's own connector
  • For a lever assembly that no longer carries a switch
  • Standard switch refits at any time

The Interlock

With a gear selected, the controller needs confirmation that the clutch is disengaged before the starter turns. The lever switch is what provides it.

Race Master Cylinders

Brembo radial units and remote adjusters are among the first changes on a prepared RSV4, and almost none of them carry a factory switch position.

The Result

No starter in gear. In a pit lane, with a bike on a paddock stand and a session about to open, that is the worst possible time to discover it.

Held Closed

This unit keeps the circuit closed permanently so the lever always reads as pulled. Nothing else in the starting strategy is affected.

The Trade

The protection against a lurch on the starter is gone, and the rider carries it instead. That is normal practice on a track bike and unacceptable on a road one.

An Adjustable Chassis

Rake, swingarm pivot and engine position all move on an RSV4, which is why so many end up genuinely set up rather than merely ridden.

One Connector

Aprilia's own plug at the bar, fitted in a minute while the lever assembly is already off.

Nothing Cut

The loom stays exactly as the factory built it and the standard switch refits whenever it needs to.

For a Track Bike

A registered motorcycle should keep the interlock connected.

Reversible

Unplug the bridge and everything returns to standard with nothing left behind.

Three World Superbike Titles

Max Biaggi took Aprilia's first in 2010 and a second in 2012, and Sylvain Guintoli added a third in 2014, all on this engine architecture. The road bike inherited considerably more of that programme than most homologation stories are willing to claim.

Fitment and Compatibility

  • Aprilia RSV4 (2021–2026)

Specifications

Model JP ES 008
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Aprilia RSV4 (2021–2026)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x eliminator
FitmentWhich bikes this fits
  • Aprilia RSV4 (2021–2026)
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08 · Paddock

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