3 mm. to 2.38 mm. (3/32") conversion kit

Convert your car to a 2.38 mm axle without changing the chassis or the bearing block

The Sloting Plus SP053026 conversion kit addresses one of the most common issues in slot car preparation: the incompatibility between the axle diameter of the components we want to use and the one that comes standard with the model. With this kit, you can install any item designed for Ø 2.38 mm (3/32") axle — wheels, axles, crown gears, crown stoppers, and similar — on a chassis that originally only accepts bearings for Ø 3 mm axles.

Function and performance

The conversion greatly expands the catalogue of compatible spare parts and accessories for your car. The Ø 2.38 mm (3/32") axle standard is the most widespread in the competitive slot world, with a much larger range of components compared to the Ø 3 mm axle. Accessing that catalogue from a chassis that does not originally accommodate it provides a real advantage when fine-tuning the car's mechanics.

Compatibility

This kit is specifically designed for cars that come standard with Ø 3 mm bearing housings, including models from brands such as BRM, Revo Slot, and TTS. Once the conversion is installed, you will be able to use Ø 2.38 mm items from the Sloting Plus catalogue and other brands without restrictions.

Assembly and preparation

• Always verify that the original bearings of your car are indeed Ø 3 mm before installing the kit.
• Always lubricate ball bearings and brass bearings during assembly and at each subsequent inspection. Proper lubrication extends the lifespan of the components and ensures smooth operation.
• Check the axial play of the axle after assembly to ensure there is no excessive play or tightness that could cause friction.

Ideal for…

• Enthusiasts looking to take advantage of BRM, Revo Slot, or TTS cars with the wide range of 3/32" axle components.
• Preparers seeking an economical solution to unify the axle type in their collection or competition box.
• Clubs that already have stock of Ø 2.38 mm components and need to make them compatible with different models in their car fleet.

Aspects to consider

This kit does not modify the car's bearing block and does not require milling or intervention on the chassis. It is a direct adaptation, making it one of the cleanest and most reversible options for managing compatibility between axles of different diameters.

Frequently asked questions

Which brands is this conversion kit compatible with?

It is designed for cars that come standard with Ø 3 mm bearings, such as those from BRM, Revo Slot, and TTS. If your car uses that bearing diameter, the conversion should work correctly.

What components can I use after installing the kit?

Any item designed for Ø 2.38 mm (3/32") axle: wheels, axles, crown gears, crown stoppers, and other spares with that base measurement.

Is it necessary to lubricate the bearings?

Yes, it is important. Sloting Plus explicitly states that both ball bearings and brass bearings should be lubricated to ensure their proper functioning and prolong their lifespan.

Can the conversion be undone to revert to the 3 mm axle?

Since it does not require irreversible modifications to the chassis, the intervention is theoretically reversible, although it is advisable to check the condition of the original bearings before removing the kit.

Is it compatible with any slot track?

The track does not influence this kit; the conversion only affects the axle and bearings of the car, not the guide or braids.

The Sloting Plus SP053026 conversion kit allows you to fit Ø 2.38 mm (3/32") axle components — wheels, axles, crowns, and crown stoppers — into slot cars originally built with Ø 3 mm bearing housings, such as BRM, Revo Slot, and TTS models. An affordable and straightforward solution for club racers and hobbyists looking to expand their compatible parts catalogue without modifying the chassis. Always lubricate ball bearings and brass bearings during installation.