Racing Light Aluminium Rear Wheels for Group2 with M3 Screw.

Machined precision at the service of the Group 2 category: the Racing Light rear aluminium wheels from BRM for 1/24 scale.

When competing seriously, every gram and every tenth of a millimetre counts. The BRM S402R2 are rear wheels made from lightweight aluminium, specifically designed for Group 2 cars at 1/24 scale. Their Racing Light manufacturing process removes material where it is not needed, reducing rotational inertia and allowing for more immediate power delivery from acceleration to braking.

Function and performance

Machined aluminium offers a concentricity far superior to that of standard plastic wheels. This translates into vibration-free running, tyres that seat evenly, and more consistent contact with the track across the circumference. The result is more predictable and repeatable grip, which is essential when adjusting race setups lap by lap.

The fixing via M3 screw ensures that the wheel remains securely attached to the axle under intense acceleration and braking conditions. Unlike pressure-fit solutions, this system prevents rotational slippage of the wheel relative to the axle, one of the most common issues in competition when working with high-grip tyres.

Compatibility and mounting

These wheels are designed for BRM models in the Group 2 category at 1/24 scale. Before mounting, it is advisable to check that the axle diameter and the vehicle's fixing type are compatible with the M3 system incorporated in this reference. Mounting is straightforward with standard slot preparation tools: a precision screwdriver and, if desired, a bit of threadlock to permanently secure the screw.

• Material: lightweight machined aluminium.
• Position: rear axle.
• Fixing system: M3 screw.
• Compatible category: Group 2.
• Scale: 1/24.
• Brand: BRM.

Mounting and preparation

To get the most out of these wheels, we recommend checking the perpendicularity of the rear axle before mounting and ensuring that the M3 screw is well aligned with the axle plane. Once mounted, it is advisable to lightly turn the tyre on the preparation lathe to ensure the final concentricity of the wheel-tyre assembly, especially if aiming for the minimum possible runout in competition.

Common errors

• Over-tightening the M3 screw: this can deform the wheel seat or damage the axle. Use just enough force to secure without stressing the material.
• Mounting the tyre without turning: even high-precision aluminium wheels can gain additional hundredths of concentricity after turning the already mounted tyre.
• Confusing with front wheels: this reference is specific to the rear axle. Always verify the position before ordering.

Frequently asked questions

Are these wheels compatible with any BRM 1/24 car?

They are specifically designed for BRM models in the Group 2 category at 1/24 scale. For other categories or scales from the brand, please consult the corresponding reference in the BRM spare parts catalogue.

What real advantage does aluminium offer over a plastic wheel?

Machined aluminium guarantees much more precise concentricity, eliminating vibrations and improving the uniform contact of the tyre with the track. Additionally, its greater rigidity prevents deformation under load, which is common in plastic wheels when using high-grip tyres.

Is the M3 screw included in the pack?

According to the reference designation, the M3 screw is part of the set. Nevertheless, we recommend verifying it in the packaging contents upon receipt.

Do I need any special tools for mounting?

No. A suitable precision screwdriver for the M3 screw is sufficient. For more demanding preparation, a slot tyre lathe will allow you to optimise the concentricity of the assembly after mounting.

Can they be used in categories other than Group 2?

As they are sized for Group 2, their use in other categories will depend on whether the axle measurements and the technical regulations of that category are compatible. Always check your category specifications before using them in official competition.

BRM S402R2 rear aluminium racing wheels for Group 2 slot cars at 1/24 scale. M3 screw fixing system, Racing Light construction for reduced rotational mass and improved on-track performance. Genuine BRM spare part for competitive slot car preparation.