
The facts.
| Model | JP ES KIT20 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Aprilia RS 660 (2025–2026) |
| Installation | Plug-and-play, no wiring harness modifications required |
| Fitment | Aprilia RS 660 (2025–2026) |
| Road approval | None — closed-circuit and race use only |
DescriptionThe whole story▼
The JP ES KIT20 removes the current RS 660's evaporative canister and closes the tank breather and purge circuit.
Key Features
- Aprilia RS 660 (2025–2026)
- Removes the evaporative canister and its hoses
- Vents the tank through a proper fitting
- Closes the purge valve circuit
- Clears the space behind the engine
- Standard parts refit at any time
Euro 5+
The tighter standard arrived with the 2025 model year and evaporative control got stricter with it. The hardware behind the engine grew rather than shrank.
A Different Layout
Aprilia rerouted the hoses and moved the vessel with the update, which is why the earlier kit does not fit. The part numbers are not interchangeable.
What Comes Out
The charcoal vessel, its bracket, the purge valve and every hose linking them to the tank and the intake.
A Correct Vent Fitting
The tank must still breathe. This kit supplies the proper part rather than leaving a hose to find its own way behind the swingarm.
The Purge Circuit
Closed rather than left open, so nothing is stored and no warning appears on the panel at the next ignition cycle.
Still 183 Kilograms
Aprilia added the emissions hardware without letting the weight climb, which took work. Removing what a track bike does not need takes it below where the first generation sat.
Shock Access
Preload and damping adjusters become reachable once the vessel is out, which on a bike being set up between sessions is worth real time.
A Wind Tunnel Fairing
The double skin moves hot air away from the rider and adds downforce. Aprilia reshaped it again for the current bike.
Reversible
Every original part refits in its original position with nothing cut.
Type Approval
Removing evaporative control ends road legality in every European market.
A Reworked Bike Underneath
The 2025 update was more than a bodywork change: Aprilia revised the electronics, the fuelling and the emissions hardware together. The motorcycle is better for it on a road and carries components a circuit bike has no use for.
Fitment and Compatibility
- Aprilia RS 660 (2025–2026)
Specifications
| Model | JP ES KIT20 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Aprilia RS 660 (2025–2026) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x eliminator
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2025–2026)
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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.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
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.
Our team will personally help you choose the right gear or part — around 24h for a reply.