Pivoting guide arm chassis Raid 90mm

The MITOOS pivot arm that keeps your guide always in contact with the rail

When the chassis works hard in a curve and the track does not forgive, it is the pivot arm that makes the difference between a guide that floats and one that transmits accurately. This original spare part from MITOOS, reference CXM931.3, is specifically designed for the 90 mm Raid chassis and ensures that the guide maintains proper contact with the rail at all times.

Function and performance

The pivot arm acts as the pivot point of the guide on the chassis. Its function is to allow the guide to rotate and tilt freely in response to changes in direction and track elevation, absorbing variations without transferring rigidity to the assembly. The result is smoother driving, with a lower risk of derailment in fast corners and more stable electrical pickup through the braids.

As it is a component that works continuously during each session, wear is inevitable. Having this original MITOOS spare part allows you to restore the factory behaviour of the Raid chassis without the need to replace the entire assembly.

Compatibility

This pivot arm is compatible with the MITOOS 90 mm Raid chassis. It is designed as a direct replacement part, so installation does not require modifications. Always check that your chassis corresponds to the 90 mm measurement before placing your order.

The chassis is not included in this item.

Assembly and preparation

The replacement process is straightforward: remove the guide from the chassis, extract the worn or damaged pivot arm, place the new one ensuring it is properly seated in its housing, and reassemble the guide. Before returning to the track, verify that the pivot movement is free and without excessive play, and that the braids are not trapped or rubbing against the arm.

Common mistakes

• Not checking the chassis measurement: the arm is sized for the 90 mm Raid; using it on a chassis of a different size may prevent proper installation.
• Confusing arm wear with a braid issue: if the guide shows irregular contact, inspect the pivot arm first before changing the braids.
• Excessive tightening during assembly: the arm should be fixed but without eliminating the guide's free pivot movement.

Frequently asked questions

Does this pivot arm include the guide or chassis?

No. The item corresponds solely to the pivot arm (ref. CXM931.3). Neither the guide nor the Raid chassis are included.

For which size of Raid chassis is this arm designed?

It is designed for the 90 mm MITOOS Raid chassis. If your chassis has a different measurement, consult the other references in the MITOOS range to find the correct spare part.

How often should the pivot arm be replaced?

It depends on usage and the type of track. In intensive racing sessions, it is advisable to inspect it periodically; if noticeable play appears or the pivot movement loses freedom, it is time to replace it.

Does the condition of the pivot arm affect electrical pickup?

Indirectly, yes. If the arm does not allow the guide to pivot freely, the pressure on the rail may be uneven, which affects the continuity of electrical contact through the braids.

The MITOOS CXM931.3 is a replacement pivot arm for the Raid 90mm chassis, designed to keep the guide blade in constant contact with the slot car track rail. An essential 1/32 slot spare part for MITOOS Raid chassis owners looking to restore original handling and consistent electrical pickup during club racing or recreational sessions.