⟲ 360° — drag meThe facts.
| Brand | Gilles Tooling |
|---|---|
| Series | ACMA |
| Part number | ACMA-28-10.b (black), ACMA-28-10.bl (blue), ACMA-28-10.r (red) |
| Type | Steering stem nut for the top yoke |
| Thread | M28 x 1.0 |
| Material | Aluminium 7075, anodised |
| Locking | Patented pin-interlock anti-twist lock |
| Use | Steering head only, not for wheel or swingarm axles |
| Fitment | Yamaha R9 (2025–2026) |
| Road approval | Not required (Gilles) |
DescriptionThe whole story▼
Die R9 bringt den Dreizylinder der MT-09 in ein Supersport-Fahrwerk mit Lenkerstummeln, Winglets und Vollverkleidung. Vom Sitz aus gesehen liegen die obere Gabelbrücke und ihre Lenkkopfmutter zwischen den Klemmen der Lenkerstummel, knapp unterhalb der Scheibe. Die Gilles ACMA macht aus dieser Mutter ein gefrästes, eloxiertes Aluminiumteil.
Die wichtigsten Merkmale
- Gewinde M28 x 1.0
- Nicht für Hinterrad- oder Schwingenachsen (laut Gilles)
- Farben: Schwarz, Blau oder Rot
- Ausschließlich als Lenkkopfmutter konstruiert
- Aluminium 7075, eloxiert
- Laut Gilles keine Eintragung erforderlich
Typen RNA3, RNA4 und RNA5
Gilles führt die ACMA für die R9 ab 2025. Blau passt zu den Yamaha-Farben, Rot oder Schwarz sind die Alternativen. Die ACMA ist nur für den Lenkkopf ausgelegt; Gilles stellt ausdrücklich klar, dass sie nicht an einer Rad- oder Schwingenachse verwendet werden darf.
Straßenzulassung
Gilles führt die ACMA an der Yamaha R9 als eintragungsfrei: keine Abnahme und keine Eintragung in die Fahrzeugpapiere. Weil sie am Lenkkopf sitzt, ist dabei nur eines nicht optional: das korrekte Drehmoment.
Lieferumfang
Eine Lenkkopfmutter Gilles ACMA, M28 x 1.0, in der gewählten Farbe, samt Stiftverriegelung.
Montage
Mit einem Drehmomentschlüssel und dem Wert aus dem Werkstatthandbuch arbeiten. Gilles hat die ACMA ausschließlich für den Lenkkopf konstruiert; an eine Rad- oder Schwingenachse darf sie nicht.
Technische Daten
- Marke: Gilles Tooling
- Serie: ACMA
- Artikelnummer: ACMA-28-10.b (Schwarz), ACMA-28-10.bl (Blau), ACMA-28-10.r (Rot)
- Typ: Lenkkopfmutter für die obere Gabelbrücke
- Gewinde: M28 x 1.0
- Material: Aluminium 7075, eloxiert
- Sicherung: patentierte Verdrehsicherung mit Stiftverriegelung
- Einsatz: nur am Lenkkopf, nicht für Rad- oder Schwingenachsen
- Passend für: Yamaha R9 (2025–2026)
- Straßenzulassung: eintragungsfrei (laut Gilles)
What's includedEverything in the box▼
- 1x Gilles ACMA steering stem nut M28 x 1.0 (colour as selected)
FitmentWhich bikes this fits▼
- Yamaha R9 (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.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
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.