The facts.
| Part number | G9954 |
|---|---|
| Type | Open, no perforation |
| Material | Stainless steel |
| Dimensions | Ø 40 mm, open, no perforation, straight cut |
| Fitment | Universal |
| Road approval | None — track use only |
| Fits | Spark Force silencers |
| Origin | Made in Italy |
| Manufacturer | Spark Exhaust Technology, Mantova |
| Manufacturer description | FORCE - d.40 00° OPEN |
DescriptionThe whole story▼
Vierzig Millimeter Durchlass auf siebzig Millimetern Länge. Der weitere Force-Einsatz, für die größeren Motoren, an die die Familie kommt.
Key Features
- dB-Killer für Spark Force-Schalldämpfer.
- 40 mm Innendurchmesser, 70 mm lang.
- Offene Bauart, keine Lochung.
- Edelstahl, herausnehmbar.
- Spark-Artikelnummer G9954, gefertigt in Mantova, Italien.
Welcher von beiden
Spark baut den Force-Einsatz mit 35 und mit 40 mm. Der kleinere geht an die kleinen Twins — R3, Ninja 400 — und dieser an alles darüber. Die Regel ist einfach: Passen Sie den Einsatz an den Motor an, nicht an den Schalldämpfer, denn das Gehäuse ist in beiden Fällen dasselbe.
Setzt man den 35er an einen großen Twin, spürt man es in der Mitte. Setzt man den 40er an eine 400er, hört man überhaupt keinen Unterschied.
Siebzig Millimeter
Kurz, wie offene Einsätze so sind. Spark verlässt sich für den größten Teil der Arbeit auf das eigene Innenvolumen des Force-Gehäuses und nutzt den Einsatz zum Trimmen statt zum Umbauen.
Das macht ihn auch leicht einbaubar: Siebzig Millimeter brauchen sehr wenig freie Länge hinter dem Austritt.
In der Praxis ein Ersatzteil
Die meisten Force-Schalldämpfer verlassen Spark mit bereits eingesetztem Stopfen. Der Grund, diesen Artikel zu kaufen, ist, dass einer abhandengekommen ist — bei einem Umbau, in der Garage eines Vorbesitzers oder unterwegs, denn ein nachlässig wieder eingesetzter Stopfen kann sich herausarbeiten.
Ein günstiges Teil gegen einen Schalldämpfer, der sonst auf einer Straßenfahrt unbrauchbar ist, ist keine schwierige Rechnung.
Vierzig Millimeter Durchlass
An einem Force-Gehäuse ab der Mittelklasse aufwärts ist vierzig der Wert, der den Motor in Ruhe lässt. Er verengt den Austritt genug, um dem Ton oben die Spitze zu nehmen, und nicht genug, um irgendwo auf einem Prüfstandsdiagramm aufzutauchen.
Richtig einbauen
Die Halteschraube macht die Arbeit. Sie gehört ordentlich angezogen und nach dem ersten Wärmezyklus kontrolliert, denn ein Einsatz, der sich in einem Titangehäuse losvibriert, zeichnet die Bohrung auf seinem Weg nach draußen.
Zulassung
Unberührt. Wo der Force-Schalldämpfer homologiert ist, gehört der gelieferte Einsatz zur zugelassenen Konfiguration; wo er ein Racing-Artikel ist, ändert kein Stopfen daran etwas.
FitmentWhich bikes this fits▼
Universalprodukt — Bitte prüfen Sie, ob es an Ihr Bike passt.
Questions, one topic at a time.
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Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
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.