SP25 compound, sponge tyres dwg 1209 (4x)

Slot.it SP25 Foam Tyres: Four Units Ready to Roll

Within the extensive catalogue of competition consumables from Slot.it, foam tyres represent one of the most valued options in club and technical circuit environments. This pack includes 4 units of the SP25 compound with a tread profile of DWG 1209, designed for those who are already familiar with the reference and want to keep their cars always in top condition without interruptions.

Main Features

• SP25 Compound: medium-soft foam, with good response to heating and stable behaviour throughout the session.
• DWG 1209 Profile: specific tread design from the Slot.it tyre family, engineered to provide an optimal contact patch on plastic track.
• Pack of 4 Units: sufficient to equip a complete car and keep a spare set on hand.
• Slot.it Manufacturing: same standards of tolerance and quality as the rest of the brand's spare parts range.

Function and Performance

Foam tyres are characterised by their ability to deform slightly under load, increasing the contact surface with the track and improving lateral grip. The SP25 compound from Slot.it performs well on rigid plastic tracks commonly found in club circuits, offering a progressive response that facilitates car control in both recreational driving and competition.

Unlike rubber tyres, foam tyres do not require the same initial sanding process to adapt to the track, although a slight truing always improves concentricity and, with it, cornering behaviour.

Compatibility

These tyres are designed to fit Slot.it rims that accommodate the DWG 1209 profile. Always check the rim diameter and the width of your chassis before mounting, as Slot.it has several profiles in its catalogue. The recommended track system is the Sport rail (Slot.it, Scaleauto).

Mounting and Preparation

The mounting process is straightforward: fit the tyre onto the corresponding rim, ensure it is centred, and if you have a truing lathe, perform a brief truing to guarantee perfect concentricity. A few tenths of a millimetre difference between wheels can significantly affect the car's stability.

• Verify that the rim diameter matches that specified for the DWG 1209 profile.
• Avoid contaminating the tread with grease or oil during mounting.
• If you are going to compete, always prepare a spare set: foam wears out faster than rubber in long sessions or abrasive tracks.

Ideal for…

This pack is especially useful for club drivers competing with Slot.it cars equipped with rims from the DWG 1209 range, and for tuners who want to have several sets of tyres on hand to test different compounds according to track conditions. It is also a good addition for enthusiasts who are taking their first steps in serious car preparation.

Considerations

Foam tyres are more sensitive to temperature and ambient humidity than rubber ones. Store them in a cool place away from direct light to preserve their properties. Over time, the foam may harden even if not used, so it is advisable to consume them within a reasonable timeframe.

Frequently Asked Questions

How many units does this pack include?

The pack contains 4 foam tyres, sufficient to equip a complete car (front axle and rear axle on a four-wheel car).

What is the difference between a foam tyre and a rubber tyre?

Foam deforms more under load, increasing the contact surface and lateral grip. It is commonly used in club competition due to its quick response, although it wears out faster than rubber and is more sensitive to environmental conditions.

Do I need to true the tyres before using them?

It is not strictly necessary, but a brief truing on a truing lathe improves concentricity and optimises the car's behaviour in corners. In competition, it is highly recommended practice.

Are they compatible with any Slot.it rim?

No. The DWG 1209 profile is designed for specific rims from the Slot.it range that correspond to that diameter and width. Check the brand's catalogue to verify compatibility with your rim before mounting.

What type of track do they work best on?

They are designed for Sport rail, the standard on Slot.it and Scaleauto tracks. Their performance is optimal on rigid plastic indoor tracks, common in clubs and private circuits.

How should I store them if I don't use them immediately?

Store them in a cool, dry place away from direct sunlight. Foam can deteriorate with heat and UV light exposure, losing elasticity and grip.

Slot.it SP25 sponge tyres DWG 1209 (4x) — reference SIPT1209SP25 — are foam compound tyres designed for club and competition use on Sport track systems. The SP25 compound delivers consistent grip and progressive response on rigid plastic tracks. Ideal for Slot.it chassis builds and tyre testing setups. Compatible with Slot.it rims matching the DWG 1209 profile. A reliable choice for slot car racers looking for quality consumables from one of the most respected names in the 1/32 slot car industry.