Titanium axle 2.38 x 57.5 mm

When every tenth counts, titanium makes the difference

The titanium axle SP041157 from Sloting Plus measures 57.5 mm in length with a diameter of 2.38 mm (3/32'') and weighs only 1.1 g. This weight saving compared to an equivalent steel axle may seem subtle on paper, but on track — and especially in competition setups where every milligram matters — it translates into a lower rotating mass, with the consequent benefit in the response of the rear end.

Main features

• Material: high purity titanium, lightweight and strong.
• Length: 57.5 mm.
• Diameter: 2.38 mm (3/32'').
• Weight: 1.1 g.
• Contents: bag with 1 unit.
• Reference: SP041157.

Why titanium and how to identify it

Titanium is a paramagnetic material: it is practically non-magnetic. This allows for quick and reliable differentiation from a conventional steel axle simply by bringing a magnet close. If the axle does not react to the magnet, it is titanium.

Sloting Plus has added a second identification element that is very useful in the workshop: the ends of the axle retain the rough finish typical of the cutting process, unpolished. Thus, at a glance and to the touch, it is immediately distinguishable from steel axles — which usually have a smoother and more uniform finish along their length — avoiding confusion when multiple types of axles are in the drawer.

Function and performance

A rear axle is the element around which the rear wheels rotate and, in most setups, also the crown gear. Its stiffness, straightness, and weight have a direct influence on the car's stability at high speeds and on the efficiency of the transmission. Titanium offers stiffness comparable to quality steel with a significantly lower density, reducing the rotational inertia of the assembly.

For sidewinder setups — where the motor is positioned parallel to the rear axle — or anglewinder, a perfectly calibrated axle is especially critical, as any deviation directly affects the crown-pinion engagement. The calibration of this axle ensures the necessary concentricity for smooth operation.

Compatibility and installation

The diameter of 2.38 mm (3/32'') is one of the most widely used standards in the world of competitive slot racing and is compatible with most chassis, axle supports, and wheels designed for this size. Before installation, always check that the supports of the chassis are clean and aligned, and that the axial play is as minimal as possible to avoid vibrations.

Common mistakes

• Confusing it with a steel axle after installation: once installed and with track dust, visual distinction becomes complicated. The magnet trick still works perfectly with the car disassembled.
• Forcing the fit in the chassis: titanium is strong, but a chassis with a damaged housing can mark the axle. Always check the condition of the supports before installation.
• Assuming all titanium axles are the same: the length and diameter must exactly match the chassis requirements. Verify measurements before ordering.

Frequently asked questions

Why does a titanium axle weigh less than a steel one of the same size?

Titanium has a density of approximately 4.5 g/cm³, compared to 7.8 g/cm³ for steel. For the same volume, titanium is around 40% lighter, hence the noticeable difference in a component like the rear axle.

Is titanium more brittle than steel?

No. Titanium has an excellent strength-to-weight ratio. In the application of a slot axle, where the stresses are relatively low, it does not present issues of brittleness. Its main advantage over steel in this context is precisely the lower weight without sacrificing stiffness.

How do I know if this axle is compatible with my chassis?

You need to check two details: the length that your chassis can accommodate (57.5 mm in this case) and the diameter of the housings (2.38 mm / 3/32''). Consult your chassis manual or measure the original axle if in doubt.

Can I use this axle on both universal and sport tracks?

The axle itself is compatible with any system, as its function is internal to the car. What determines compatibility with the track (Scalextric, Ninco, Scaleauto, Slot.it…) is the guide, the braids, and the chassis, not the rear axle.

Does the rough finish on the ends affect performance?

No. The bearing area and the transmission area (where the crown and wheels go) are calibrated. The rough ends are exclusively a mark for visual and tactile identification and do not come into contact with any functional element of the assembly.

The Sloting Plus SP041157 titanium axle — 57.5 mm long, 2.38 mm diameter (3/32''), 1.1 g — is a precision-calibrated slot car rear axle designed for competitive builds. Its paramagnetic properties make it easy to identify with a magnet, while the deliberately rough-cut ends provide instant visual recognition. Lightweight and rigid, it reduces rotational inertia on the rear axle assembly, benefiting performance in both sidewinder and anglewinder configurations. Sold individually.