⟲ 360° — drag meThe facts.
| Model | JP ACC YA043 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Yamaha YZF-R1 Race (2025–2025) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP ACC YA043 shortens the YZF-R1 Race's throttle rotation to sixty degrees, which is the difference between reaching full opening comfortably and running out of wrist.
Key Features
- Yamaha YZF-R1 Race (2025)
- Ride-by-wire quick throttle with a sixty degree rotation angle
- CNC-machined from solid Ergal
- Plug-and-play on the motorcycle's own connector
- Diagnostic reset required after fitting
- Standard throttle assembly refits at any time
With the Race Harness
A machine wired for the race kit expects a specific throttle assembly, and fitting the road version to it is not a shortcut but a fault waiting to appear.
Plug and Play
The original connector carries over and nothing in the loom is cut. Fitting is mechanical and the electrical side is a plug moved from one body to another.
Traction Control
It reads wheel speeds and lean angle, not the grip. Changing the throttle assembly gives it nothing new to work with and takes nothing away.
Fitting Order
Bar end, grip, switchgear, then the assembly. Reassembly is the reverse and the only awkward moment is threading the connector back where it came from.
Storage
The standard assembly is plastic and will not corrode, but the connector will. A bag and a dry shelf are the whole of the requirement.
A Note on Warranty
A dealer will notice a changed throttle assembly. On a motorcycle still inside its term the standard part going back on before an appointment is the simpler path.
A Second Opinion Before Buying
Sit on the motorcycle and roll the standard throttle to its stop. If the wrist is still comfortable there, the case for this part is weaker than the marketing suggests.
Inspections and the Law
It is a standard-looking control in a standard position doing the standard job, and it touches nothing an emissions or lighting test measures. Where local rules take an interest in changes to controls, the honest answer is a shorter rotation and nothing else.
Riding With Others
A sharper hand response makes smooth following harder for the first hour. Anybody planning to use the part behind somebody else's rear wheel should get the solo miles in first, which is good advice for any control change.
Fitment and Compatibility
- Yamaha YZF-R1 Race (2025–2025)
Specifications
| Model | JP ACC YA043 |
|---|---|
| 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 throttle housing
FitmentWhich bikes this fits▼
- Yamaha YZF-R1 Race (2025)
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
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Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
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Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
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