Pack of 50 Scaleauto A-S25 Tyres Shore 25 - 19x10.5mm (SC-4752AS25BP)

When mechanical equality is non-negotiable, Scaleauto's Bulk Pack format makes the difference

In any championship or training session of significant scale, the variability between tyres from different batches is one of the factors that most distorts the results. The Pack SC-4752AS25BP from Scaleauto solves that problem at its root: 50 tyres from the same manufacturing batch, same compound and same dimensions, ready to be distributed among entire grids with the certainty that the performance will be identical in each car.

Technical specifications

• Reference: SC-4752AS25BP
• Quantity: 50 units (25 pairs)
• Compound: Rubber A-S25, Shore hardness 25
• Profile type: Racing Slick
• Dimensions: 19 mm diameter × 10.5 mm width
• Wheel compatibility: 15.8 mm to 17 mm

The Shore 25 compound: grip without sacrificing durability

The Shore scale measures the hardness of elastomers: the lower the value, the softer and more adhesive it is. A Shore 25 falls into the high grip zone, offering a generous footprint on plastic and wooden tracks without being so soft that it degrades in just a few sessions. It is the balance that organisers seek for competitive racing with tyres that can withstand several qualifying rounds and the final without noticeable changes in performance.

The Racing Slick profile maximises the contact surface with the track. Without drainage channels that reduce the footprint, the rubber works in its entirety, resulting in a safer cornering experience and cleaner corner exits, especially on fast track layouts.

Why the 50-unit format matters

Acquiring tyres in a pack of 50 has advantages that go beyond economic savings:

• Batch homogeneity: all tyres share the same physical and chemical properties, eliminating grip variations between drivers.
• Operational stock: for clubs with dense schedules, having sufficient reserves avoids supply issues between races.
• Simplified management: a single reference covers the needs of the entire grid, facilitating inventory control.
• Single-tyre races: the bulk format is the standard in competitions where the regulations impose the same tyre on all participants.

Applications and compatibility

With a measurement of 19×10.5 mm and declared compatibility for rims of 15.8 to 17 mm, these tyres fit most GT and touring models present in current catalogues. Their geometry fits particularly well in applications on Sport track, although the rim is the determining factor for actual compatibility: always check the diameter of your rim before mounting.

Mounting does not require special tools: simply apply a small radial tension to fit the tyre onto the rim. If you are going to grind them, do so with the tyre already mounted and at low speed to avoid excessive heating of the soft compound.

Ideal for…

• Clubs and tracks that organise championships with homologated tyres.
• Preparation teams that need uniformity across multiple cars.
• Endurance race organisers where multiple tyre changes are anticipated.
• Complete seasons of intensive training where rubber consumption is high.

Frequently asked questions

How many pairs of tyres does this pack include?

The pack SC-4752AS25BP contains 50 units, which equates to 25 complete pairs (left + right front wheel, or all four wheels of 12 cars with two extra for changes).

What does Shore 25 mean in practice?

Shore 25 indicates a fairly soft rubber, with a high capacity for elastic deformation upon contact with the track. This translates to greater grip from the first metre, especially on plastic or wooden tracks. Conversely, they are somewhat more susceptible to wear than harder compounds (Shore 30-40), although Scaleauto has balanced them to withstand long sessions.

Are they compatible with rims from other brands?

The key parameter is the inner diameter of the rim: as long as it is between 15.8 and 17 mm, the tyre should fit correctly regardless of the rim brand. Always check the technical specifications of your rim before placing a bulk order.

Do they require any prior treatment to improve grip?

With a Shore 25, grip is already notable when cold, but some preparers apply a light cleaning with isopropyl alcohol to remove factory release agents before the first session. Aggressive rubber treatments are not necessary with this compound and may alter its properties during racing.

Can they be ground on a lathe?

Yes. Being a soft compound, it is recommended to grind at low RPM and with very fine passes to avoid excessive heating, which could deform the tyre or alter its concentricity. Always mount the tyre on the rim before grinding.

Does this bulk format have any manufacturing differences compared to the 2 or 4 unit pack?

No. The compound, dimensions, and manufacturing process are identical. The only difference is the packaging and quantity, designed for professional or club use.

Scaleauto SC-4752AS25BP bulk pack of 50 slot car tyres, Shore 25 compound Racing Slick profile, 19×10.5 mm dimensions, compatible with rims from 15.8 to 17 mm. High-grip rubber tyres for GT and touring slot cars, ideal for club racing, one-make tyre championships and endurance events. Consistent batch production ensures mechanical equality across the entire grid. Available at Ministry of Hobby.