55mm x 3/32 hollow

A lightweight, non-magnetic axle to maximise your setup

The axle NSR4872 is a preparation component designed for slot mounts where every tenth of a gram counts. With its 55 mm length, 3/32" diameter, and hollow construction, this axle minimises rotational mass, promoting cleaner acceleration and a more agile response in corners.

Main features

• Length: 55 mm
• Diameter: 3/32" (≈ 2.38 mm)
• Construction: hollow, for maximum lightness
• Weight: 1.12 g
• No magnetic effect: does not interfere with the chassis magnets or downforce grip

Function and performance

The hollow design has a clear purpose: to eliminate grams in a critical area of the car. When rotating, any mass on the rear axle acts as a flywheel; reducing it improves response to sudden acceleration changes and the ability to brake accurately. The absence of magnetism also ensures that the car's behaviour is predictable and not influenced by the axle's effect on the grip magnets.

Compatibility and mounting

The 3/32" format is one of the most widespread in 1/32 scale slot preparation, compatible with crowns, pinions, and pinion holders that accept this standard diameter. Before mounting, check the usable length between the supports of your chassis to confirm that the 55 mm fits without the need for cutting.

Usage recommendations

This axle is designed for competition mounts where fine-tuning dynamic behaviour is sought. If your category or club restricts the use of hollow axles, consult the regulations before using it in official competition. For recreational use or informal club racing, it is a simple and effective upgrade that does not require special tools.

Frequently asked questions

What advantage does a hollow axle offer over a solid one?

Being hollow, it weighs less. This reduces the rotational inertia of the rear axle, resulting in cleaner acceleration and greater responsiveness when releasing the trigger of the controller.

What does it mean that it has no magnetic effect?

It means that the axle material is not attracted by the chassis magnets. This prevents the axle itself from generating interference in the car's magnetic downforce, offering a more neutral and predictable behaviour.

Is it compatible with any 1/32 scale chassis?

It is compatible with those chassis that use the 3/32" axle format and have a distance between supports that allows for the 55 mm length. Always check the measurements of your chassis before mounting.

Do I need special tools to mount this axle?

Not necessarily. A pair of suitable wrenches for locking crowns and pinions (or axle locking) is sufficient in most cases. If mounting on a high-precision chassis, an alignment tool can help centre the axle correctly.

Can it be used in club competition?

It depends on your club or championship regulations. Check the rules before using it in official races, as some regulations restrict or prohibit the use of hollow axles.

The NSR4872 is a 55 mm hollow rear axle in 3/32" diameter, weighing just 1.12 g and featuring a non-magnetic construction. Designed for 1/32 slot car racing preparation, it reduces rotational inertia for sharper acceleration and braking response. A go-to upgrade for club racers and competitive slot car builders looking to fine-tune their setup without magnetic interference.