4 Slick tyres 20x12

Slick Tyres 20x12: The Grip That Makes a Difference on Track

When preparing a slot car seriously, the choice of tyre is not a minor detail: it is one of the most decisive decisions in the final behaviour of the vehicle. This set of 4 slick tyres in size 20x12 (reference PKS009) is designed for those who want to get the most out of their setup, whether in a competition club or on a private track where lap consistency is key.

Function and Performance

The slick profile —completely smooth, with no tread pattern— is the standard in competition slot for a very simple reason: it maximises the contact surface between the tyre and the plastic track. The result is greater transmission of driving force to the ground, shorter braking distances, and a more direct lateral response when entering a corner.

• Size 20x12: external diameter of 20 mm and width of 12 mm, common dimensions for rear axles in competition categories.
• Slick profile: continuous contact with the track surface.
• Pack of 4 units: the complete set to equip both axles of the car or have spare tyres ready for quick changes.

Compatibility and Installation

Before mounting any new tyre, it is advisable to check that the inner diameter (rim) and width are correct for the hub or rim used on our car. The measurements 20x12 correspond to the external diameter and the total width of the tyre; always check the inner diameter of the car's rim to ensure a tight fit without play.

For optimal performance, we recommend lightly sanding the tyres on a lathe or tyre sander before the first session: this process —known as "truing"— ensures that all four tyres share exactly the same diameter and that the car runs without vibrations.

Preparation and Tuning

A slick tyre offers its full potential when the track is at working temperature and the tyre itself has completed a few warming laps. In competition, many drivers also apply a soft grip agent to increase grip in the first series of heats. The frequency of replacement will depend on the usage rate: on conventional plastic tracks, wear is moderate, but on rougher tracks, periodic checks of the diameter are important to maintain the car's balance.

Ideal for…

• Competition setups in clubs where tyre sizes are homologated.
• Drivers looking for grip consistency and predictability in handling.
• Preparation workshops that need to always have spare tyres with standard sizes.

Considerations

Always check the permitted sizes in your championship regulations before mounting these tyres on an official competition car. The measurements 20x12 are common in several categories, but each organisation may set specific tolerances.

Frequently Asked Questions

How many units are included in the PKS009 pack?

The pack includes 4 slick tyres in size 20x12, sufficient to equip both axles of a car or to have two spares ready for a quick change in competition.

What does the size 20x12 mean on a slot tyre?

The first number (20) indicates the external diameter of the tyre in millimetres; the second (12) indicates the total width. These are the two key measurements to know if the tyre fits the hub and the available space within the car's wheel arch.

Is it necessary to true the tyres before using them?

It is not strictly mandatory, but it is highly recommended. Truing on a lathe ensures that all four tyres have exactly the same diameter, eliminating vibrations and significantly improving the stability and balance of the car on track.

Can any grip product be applied to these slick tyres?

Yes. Many preparers apply grip agents (traction compound) to increase grip temporarily. Check beforehand if your club's regulations allow it, as some competition categories prohibit the use of these products.

What type of track are they most suitable for?

Slick tyres perform well on plastic tracks like Scalextric, Ninco, Carrera, or Scaleauto. They also offer good performance on rougher wooden tracks, although wear may be slightly higher.

The PKS009 set includes four 20x12 slick tyres for slot cars, delivering maximum grip and consistent lap times on plastic and wood tracks. An essential upgrade for club racers and serious hobbyists looking to fine-tune their slot car setup with reliable, competition-spec rubber.