Medium Spring 0.3mm

The right spring makes a difference in your 1/32 slot car chassis

In the preparation of a slot car, the smallest mechanical details often determine track behaviour. The Medium Spring 0.3mm from Avant Slot (ref. av20568b) is a specific chassis spare part for the 1/32 scale, designed to provide the right tension that the guide and chassis system needs to operate with precision and consistency.

Function and performance

Chassis springs regulate the pressure with which the guide makes contact with the track and absorb track irregularities. A worn or incorrectly rated spring can result in loss of grip from the braids, an unstable guide, or erratic behaviour in corners. This medium hardness spring with a wire diameter of 0.3mm offers a balance between rigidity and flexibility, suitable for a wide range of setups and driving styles.

Compatibility

This spare part belongs to the Avant Slot chassis catalogue for the 1/32 scale. To confirm exact compatibility with your specific model or chassis, consult the technical reference of your Avant Slot chassis or contact our advisory team.

Installation and preparation

• Replace the spring when you notice excessive play or abnormal stiffness in the movement of the guide.
• Check that the inner diameter of the spring is compatible with the stem of your chassis before installation.
• A spring with the correct tension improves the contact of the braids with the track and contributes to more stable and predictable driving.
• Combine its replacement with a general inspection of the guide and braids to make the most of the setup.

Common mistakes

• Using a spring that is too hard on circuits with an irregular profile: this can cause the guide to jump and lose contact with the track.
• Confusing the hardness of the spring with the pressure of the guide: both parameters are independent and should be adjusted separately.
• Not checking the condition of the spring after long competition sessions: metal fatigues and tension varies with use.

Frequently asked questions

What does it mean for the spring to be "medium" in terms of hardness?

The term "medium" indicates that it is positioned between the soft and hard springs in the Avant Slot catalogue. It offers moderate tension, suitable for general use in competition and recreational practice without requiring extreme chassis adjustments.

When should I change the chassis spring?

When you notice that the guide has excessive play, that the car frequently loses electrical contact, or that track behaviour becomes inconsistent without apparent cause in other components. It is also advisable to inspect it after intense competition sessions.

Is this spring compatible with chassis from other brands?

It is a spare part from the Avant Slot catalogue. Compatibility with chassis from other brands depends on the inner diameter of the spring and the stem of each chassis. We recommend checking this before installing it in a different brand setup.

Can I use a harder or softer spring depending on the circuit?

Yes. Adjusting the hardness of the spring according to the circuit profile is a common practice in slot preparation. On very technical circuits or with irregular surfaces, a softer spring can improve track following; on smooth and high-speed circuits, a harder one can provide greater stability.

The Avant Slot av20568b Medium Spring 0.3mm is a 1/32 scale slot car chassis spare part designed to maintain optimal guide pressure and consistent electrical contact through the braids. A precise and reliable replacement for competitive and recreational slot car setups, keeping your car performing lap after lap.