24Z angle crown gear

The Slot.it FLAT anglewinder crown gear for those who push every tenth on track

The SIGA1524PL crown gear from Slot.it is a specific transmission component for anglewinder setups in FLAT configuration. With 24 teeth, it is designed for a 2.38 mm (3/32) axle and works alongside a pinion with a 6.75 mm diameter. A very specific component, aimed at enthusiasts who know exactly what gear ratio they need and on which type of chassis they will mount it.

Features and function

• Number of teeth: 24Z
• Compatible axle diameter: 2.38 mm (3/32)
• Required pinion: 6.75 mm diameter
• Configuration: Anglewinder FLAT
• Reference: SIGA1524PL
• Identifying colour: Green

The green colour allows for visual identification of this reference within the Slot.it crown gear range, facilitating organisation in the workshop and avoiding confusion with other gear ratios.

Anglewinder FLAT: what it means and why it matters

In an anglewinder setup, the motor is positioned at an angle relative to the rear axle. The FLAT variant takes this concept a step further: the motor-crown assembly operates in a more horizontal position, which helps to reduce the height of the transmission block and, consequently, lower the car's centre of gravity. This configuration is highly valued in competition categories where regulations limit chassis height or where maximum balance is sought.

For this system to function correctly, the crown must be specific to FLAT. It is not interchangeable with standard anglewinder crowns without verifying the gear mesh geometry with the pinion.

Compatibility and installation

This crown is designed to work with a 6.75 mm diameter pinion. Before installing it, it is advisable to check that the motor pinion is compatible with that measurement. A poorly matched gear mesh generates vibrations, premature wear, and loss of power transmitted to the axle.

The 2.38 mm (3/32) axle is one of the most widely used standards in competitive slot racing, so the crown fits a wide variety of Slot.it chassis and other brands that use this rear axle diameter.

Usage recommendations

• Check the crown-pinion alignment before each session: a slight misalignment in FLAT configuration may go unnoticed visually but can affect performance.
• Check the backlash between pinion and crown. With 24 teeth, a too-tight adjustment can generate friction; too loose, loss of efficiency.
• If you change the gear ratio based on the layout, keep in mind that 24Z is a relatively long crown: it favours top speed on faster circuits compared to crowns with more teeth.
• Slot.it recommends using their crowns with pinions from their own range to ensure optimal meshing.

Frequently asked questions

Is this crown compatible with any anglewinder chassis?

Not exactly. It is specific to the FLAT anglewinder configuration. In standard anglewinder chassis (not FLAT), the gear mesh geometry may not be correct. Check the chassis documentation before installing it.

What pinion do I need to use this crown?

It requires a 6.75 mm diameter pinion. Slot.it offers specific pinions for this measurement within their transmission range.

Is the 2.38 mm axle the same as 3/32?

Yes. 2.38 mm is the metric conversion of the Anglo-Saxon standard 3/32 inch. It is one of the most common rear axle diameters in competitive slot racing.

Why is the crown green?

Slot.it uses a colour code to visually distinguish different references within their transmission catalogue. Green identifies this specific configuration (FLAT, 24Z, 2.38 mm axle), making management in the workshop easier when working with multiple gear ratios.

When is it advisable to use a 24-tooth crown versus one with more teeth?

A 24Z crown, combined with a pinion with fewer teeth, provides a gear ratio aimed at higher top speed. It is more suitable for fast layouts with few chicanes. In more technical circuits, crowns with more teeth offer better acceleration out of corners.

The Slot.it SIGA1524PL is a 24-tooth anglewinder FLAT crown gear designed for 2.38 mm (3/32) rear axles, requiring a 6.75 mm pinion. A precision transmission component for slot car racing enthusiasts building or tuning FLAT anglewinder setups. Compatible with Slot.it chassis and other brands using the 3/32 axle standard. Essential for competitive club racing and serious hobbyists looking to optimize gear ratios on technical or high-speed layouts.