Rear Tyre Mini Classic Soft 1/24 Shore 25 Racing. Measurements 20x10.5mm for Wheels ø14mm.

The BRM Mini Classic Soft Rear Tyre: Grip and Control for Your 1/24 Slot Car

When tuning a 1/24 slot car, the choice of tyre makes the difference between mediocre lap times and finding the true limit of the chassis. BRM knows this well, which is why their Mini Classic tyre range offers different hardness levels to suit each type of track and driving style. This model in Soft, Shore 25 compound is the softest option in the range: more deformation under load, larger contact surface, and consequently, greater grip.

Technical Specifications

• Position: rear
• Scale: 1/24
• Dimensions: 20 x 10.5 mm
• Rim Compatibility: ø14 mm
• Hardness: Shore 25 (Soft)
• Reference: BRM-S404MS

Function and Performance

The Shore 25 is a particularly soft compound that performs very well on plastic tracks or surfaces that do not offer much mechanical grip. The rubber adapts to the irregularities of the layout, improves traction on corner exits, and reduces oversteer in fast chicanes. For the driver seeking consistent lap times and good handling on long circuits, this type of tyre is a common reference in competition setups.

The dimensions 20x10.5mm are proportional to the rear assembly of BRM's Mini Classic models in 1/24 scale, making installation straightforward on the ø14mm rims for which it is designed. No turning is necessary if the rim diameter is correct.

Compatibility and Installation

This tyre is specifically designed for BRM's ø14mm rims in the Mini Classic 1/24 line. Before installation, it is advisable to check that the rim has no burrs or imperfections in the seating area, as a clean fit ensures that the tyre is centred and does not generate vibrations during operation. If the tyre shows any ovalisation after storage, a brief pass through a truer or the use of fine sandpaper on a flat surface will prepare it.

Common Mistakes

• Mixing hardness on the same axle: if you mount a Soft on one side and a harder compound on the other, the car will tend to pull towards the side with greater grip. Always use the same model on both rear wheels.
• Not truing before running: although Shore 25 is soft, a light truing ensures a uniform diameter and removes the thin layer of release agent that can reduce grip in the first few metres.
• Mounting on an incorrect diameter rim: this tyre is designed for ø14mm. Forcing it onto a rim of a different diameter can deform it or make centring difficult.

Ideal for…

This tyre fits particularly well in setups aimed at club competition or preparing cars for universal or sport track plastic layouts. It is also a good choice for enthusiasts looking to explore the tuning of their BRM Mini Classic 1/24 and experience firsthand the difference that the compound makes in the overall behaviour of the car.

Frequently Asked Questions

How many units are included in the package?

The product listing indicates the units as provided by BRM. Check the description and product images to confirm the quantity before placing your order.

Do I need to true the tyre before using it?

It is not strictly mandatory, but it is highly recommended. A brief truing eliminates possible diameter irregularities and the fine layer of release agent left from the manufacturing process, resulting in more immediate and consistent grip from the first metre.

On what type of track does a Shore 25 perform best?

Soft compounds work particularly well on plastic tracks with low mechanical grip or on layouts where the grip level is not very high. On very technical tracks or those with high grip, a harder compound may offer greater consistency throughout the race.

Can I use it on BRM models from other lines besides Mini Classic?

As long as the rim is ø14mm and the dimensions of the rear assembly are compatible with the 20x10.5mm measurements, installation is possible. It is safest to verify the specifications of your rim before purchasing.

What is the difference between Shore 25 (Soft) and a harder compound from the same range?

A lower Shore indicates a softer rubber: greater deformation under load, more instant grip, and better adaptation to irregular surfaces, but potentially greater wear. A harder compound offers greater durability and may be more predictable on high-grip tracks.

BRM rear tyre Mini Classic Soft Shore 25 for 1/24 slot racing. Dimensions 20x10.5mm, compatible with ø14mm rims. Designed for BRM Mini Classic models, this soft compound tyre delivers excellent grip and consistent performance on plastic track layouts, making it a popular choice for club racing and competitive slot car preparation.