JetPrime JP KS YA023 Yamaha YZF-R1 Race — Kill Switch Button (Black) — view 1 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP KS YA023
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsYamaha YZF-R1 Race (2025–2025)
InstallationPlug-and-play, no wiring harness modifications required
DescriptionThe whole story

The JP KS YA023 is the kill switch listed for the YZF-R1 Race, model-specific down to the plate shape and the connector the loom expects.

Key Features

  • Yamaha YZF-R1 Race (2025)
  • 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

With the Kit Loom

A race harness changes the ignition circuit, and the switch for those machines is listed separately rather than as a variant.

Three Hundred and Fifty Grams

That is the manufacturer's figure for what leaves the top yoke. It is a small number in a place where mass matters more than most.

The Button

A single sealed push button doing what the key did: arm the ignition, then kill it. There is nothing else to learn about operating it.

How the Engine Is Killed

The button breaks the ignition circuit exactly as turning the key to off did. Nothing about the way the engine stops changes.

Immobilisers

Where the key holds a transponder, the aerial around the barrel is part of the circuit. That question has to be answered before the barrel comes off, not after.

Storage

The original block belongs in a dry bag with its key. A seized barrel and a lost key together cost more than this part did.

Two Reasons People Buy It

The bike is being prepared for a circuit, or the original barrel has failed and the owner has decided not to replace like with like.

On a Bike That Also Sees Roads

A dual-purpose machine is the wrong candidate. The steering lock and the immobiliser exist for reasons that do not stop applying at weekends.

No Lanyard Here

Some series require a tethered cut-out. This part does not provide one and it does not prevent one being fitted alongside.

What Stays Exactly as It Was

Switchgear, starter button, instruments, lighting, traction control, riding modes and every map in the engine controller. This part occupies the space the ignition block held and speaks to the ignition circuit only.

Fitment and Compatibility

  • Yamaha YZF-R1 Race (2025–2025)

Specifications

Model JP KS YA023
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Yamaha YZF-R1 Race (2025–2025)
Installation Plug-and-play, no wiring harness modifications required
What's includedEverything in the box
  • 1x handlebar switch
FitmentWhich bikes this fits
  • Yamaha YZF-R1 Race (2025)
07 · Support

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