JetPrime JP ACCGP TR039 — GP Series Short-Stroke Throttle Grip — view 1⟲ 360° — drag me
02 · Data & docs

The facts.

Technical data
ModelJP ACCGP TR039
ManufacturerJetPrime
MaterialCNC-milled Ergal 7075
FitsTriumph Speed Triple 1200 RR (2021–2024)
InstallationPlug-and-play, no wiring harness modifications required
Return SpringProgressive, preload adjustable in three positions
DescriptionThe whole story▼

The JP ACCGP TR039 fits the Speed Triple 1200 RR, Triumph's cafe-racer-styled flagship naked, cutting the ride-by-wire throttle's rotation to 60 degrees. The electronic throttle body's sensor and the bike's mapping remain factory standard; the change is entirely in how far the grip turns to reach full throttle.

Key Features

  • Triumph Speed Triple 1200 RR (2021–2024)
  • GP Series ride-by-wire quick throttle with a sixty degree rotation angle
  • Progressive return spring, preload adjustable externally in three positions
  • CNC-machined from solid Ergal 7075
  • Plug-and-play on the motorcycle's own connector
  • Standard throttle assembly refits at any time

A Half-Fairing and a Lower Bar

The RR's half-fairing and lower, more forward bar position put the rider closer to a sportsbike crouch than the upright RS it is based on. In that posture, wrists sit at a different angle than on a naked bike with wide bars, and a shorter throttle throw suits the more compact reach to the grip.

A Mechanism, Not the Electronics

This unit covers the full range of throttle opening in just sixty degrees of rotation. The mechanical ratio inside the housing is what changes, not the throttle body's electronics or the signal it sends to the ECU. The sensor's calibration and the signal it reports stay exactly as Triumph specified from the factory.

Switches Stay Where They Were

Fitting the shorter throttle does not disturb the position of the RR's switch cluster, so indicators, mode buttons, and cruise control, where fitted, remain exactly where the rider's thumb already expects them. Only the grip itself and the mechanism behind it change.

A Triple Built to Snap

The 1200 triple in the RR is tuned for a sharper, more immediate feel than the RS's version, and the shorter throttle throw plays into that intent rather than against it. Less rotation between closed and open keeps the engine's response arriving as quickly as the chassis is set up to use it.

Machined, Not Cast

The housing is cut from a solid billet of Ergal 7075 aluminium rather than cast, giving consistent wall thickness around the bearings and spring. There is no seam where two halves meet, which keeps the mechanism running true even after repeated hard use.

A Relearn, Not a Rebuild

After fitting, a short diagnostic relearn of the throttle position brings the ECU's baseline in line with the new unit. It is routine workshop work, not a remap, and does not touch the fuelling tables underneath it. A dealer handling a routine service can complete the relearn alongside other scheduled work.

Fitment and Compatibility

  • Triumph Speed Triple 1200 RR (2021–2024)

Specifications

Model JP ACCGP TR039
Manufacturer JetPrime
Material CNC-milled Ergal 7075
Fits Triumph Speed Triple 1200 RR (2021–2024)
Installation Plug-and-play, no wiring harness modifications required
Rotation Angle 60°
Return Spring Progressive, preload adjustable in three positions
What's includedEverything in the box▼
  • 1x throttle housing
FitmentWhich bikes this fits▼
  • Triumph Speed Triple 1200 RR (2021–2024)
07 · Support

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