JetPrime JP KS DU021 Ducati Streetfighter V4S — Kill Switch Button — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP KS DU021
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsDucati Streetfighter V4S (2020–2024)
InstallationPlug-and-play, no wiring harness modifications required
DescriptionThe whole story

The JP KS DU021 is the kill switch listed for the Streetfighter V4S, model-specific down to the plate shape and the connector the loom expects.

Key Features

  • Ducati Streetfighter V4S (2020–2024)
  • Replaces the original ignition block, key and lock
  • Around 350 g off the top yoke
  • CNC-machined from solid Ergal
  • IP69K sealed push button
  • Plug-and-play on the motorcycle's own connector

Semi-Active and Naked

The S brings electronic suspension and forged wheels to a motorcycle that already had more power than most riders can use. Track days are where it makes sense.

Check the Immobiliser First

Where the key carries a transponder, the ring around the barrel is part of the starting circuit. That has to be settled before the barrel comes off.

Where the Weight Sits

High and forward, above the steering head. Mass in that position works against the rider on every direction change, which is why the figure is worth more than it looks.

On the Top Yoke

The plate follows the yoke's shape on most models, which is why the part number changes even between bikes that look similar.

The Weight, Honestly

Three hundred and fifty grams will not be felt on a lap time. What it does is take mass off the steering head, which is the best place to lose it.

A Visible Change

It sits in the middle of the cockpit where the rider looks. That is part of why owners buy it and there is no point pretending otherwise.

Threads in Aluminium

The yoke is cast and the fasteners are small. The specified torque is low and exceeding it is the one way this job goes wrong.

US Market Bikes

A few models carry a separate number for the American specification, because the ignition circuit there is arranged differently.

Between Sessions

The bike sits armed or dead depending on one press. There is nothing hanging out of the yoke to catch a glove or a knee.

The Fitting, Start to Finish

Tank or cover off to reach the loom, the ignition connector unplugged, two fasteners out of the top yoke, the block lifted away and the new body bolted into the same holes. Twenty minutes on most machines and no part of it needs the front end disturbed.

Fitment and Compatibility

  • Ducati Streetfighter V4S (2020–2024)

Specifications

Model JP KS DU021
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Ducati Streetfighter V4S (2020–2024)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x handlebar switch
FitmentWhich bikes this fits
  • Ducati Streetfighter V4S (2020–2024)
07 · Support

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08 · Paddock

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