Supreme Technology Oversuspension vibration damper kit for KTM RC 390 2024–2025 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandSupreme Technology
ProductOversuspension Vibration Damper Kit
TypeSuspension oscillation damper with spring-weighted resonator
FitmentKTM RC 390 (2024–2025)
InstallationPlug-and-play, no chassis modification required
OriginMade in Italy
Intended UseRoad, urban and track day riding
DescriptionThe whole story

When the suspension of a lightweight sports bike like the KTM RC 390 reaches its limits, unwanted oscillations rob you of grip, stability and confidence. The Supreme Technology Oversuspension kit is a precision-engineered Italian solution built specifically for the RC 390 (2024–2025), drawing directly on Superbike and MotoGP development to give every rider — road commuter or track day regular — a measurably more composed and responsive chassis.

Key Features

  • Precision-tuned resonator with a spring-weighted mass absorbs suspension oscillations at the point where the shock absorber reaches its operational limits, restoring traction and stability instantly.
  • Manufactured in Italy to exacting quality standards, with each unit individually inspected — founder Nicola Bragagnolo's racing background is built into every component.
  • Plug-and-play fitment requires no structural modification to the RC 390's chassis, keeping installation straightforward and reversible.
  • Tangible gains in mid-corner stability and braking feel, particularly on broken or uneven road surfaces and during fast direction changes on track.
  • Equally effective in urban traffic, fast road riding and dedicated track day use — a single upgrade that improves the bike across all conditions.
  • Decades of real-world motorsport testing underpin the design, translating race-derived suspension technology directly to a production sports bike application.

Racing DNA, Road-Ready Engineering

The Oversuspension system works through a precisely calibrated resonator incorporating a spring weight. When the RC 390's shock absorber approaches its travel limits — under hard braking, over mid-corner bumps or during aggressive acceleration — this component counteracts the resulting oscillation cycle before it can unsettle the chassis. The effect is not subtle: riders consistently report more confident corner entry, better traction on the exit and a general sense that the bike tracks more faithfully over imperfect surfaces.

Supreme Technology was founded on a straightforward principle: the suspension intelligence developed over years of Superbike and MotoGP competition belongs on every rider's machine, not just factory race bikes. The result is a product range that feels premium because it genuinely is — not a rebadged aftermarket accessory but a purpose-developed chassis component with a clear engineering rationale behind it.

Made in Italy

Every Oversuspension unit leaves the Supreme Technology facility in Italy having been built and verified to the same standards applied to race-specification parts. The combination of motorsport experience and meticulous Italian craftsmanship produces a component that inspires confidence before you even fit it. Quality is visible in the finish, the tolerances and the precise feel of the assembly — details that distinguish a truly premium suspension upgrade from a generic alternative.

Fitment and Compatibility

This kit is designed and tested specifically for the following model:

  • KTM RC 390 (2024–2025)

Specifications

  • Brand: Supreme Technology
  • Product: Oversuspension Vibration Damper Kit
  • Type: Suspension oscillation damper with spring-weighted resonator
  • Fitment: KTM RC 390, model years 2024–2025
  • Installation: Plug-and-play, no chassis modification required
  • Origin: Made in Italy
  • Intended use: Road, urban and track day riding
FitmentWhich bikes this fits
  • KTM RC 390 (2024–2025)
07 · Support

Questions, one topic at a time.

Estimate your shipping

Get the real shipping cost for this item to your address — the same rates as checkout.

Pick your countrySame rates as checkout

Choose a destination and hit Estimate — we fetch the live rates for this item.

How long does delivery take?

We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.

How much does shipping cost?

Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.

Do you ship to my country?

Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.

Will I have to pay customs or import duties?

Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.

How can I track my order?

As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.

What if an item is out of stock?

On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.

Didn’t find your answer?

Our team will personally help you choose the right gear or part — around 24h for a reply.