32d Crown Gear Anglewinder 25° Procomp-R

The 25° Procomp-RS reverse anglewinder crown from Scaleauto: precision in every tooth

In an anglewinder setup, the crown is not a minor element: it defines the gear ratio, conditions the corner exit behaviour, and if not properly specified, it can ruin a setup that is otherwise impeccable. This 32-tooth crown with a 25° angle belongs to the Procomp-RS line from Scaleauto and is manufactured in the reverse version, meaning the tooth orientation is inverted compared to the standard.

Technical specifications

• Number of teeth: 32
• Angle: 25°, specific for anglewinder configurations
• Version: reverse (RS) — tooth in inverted orientation
• Line: Procomp-R from Scaleauto
• Reference: SC-1172br

What does anglewinder mean and why does the crown angle matter?

In an anglewinder configuration, the motor is positioned at an angle relative to the rear axle. This necessitates the use of crowns with a specific tooth cut that matches that particular angle — in this case, 25° — to ensure a clean engagement with the motor pinion. Using a crown with the incorrect angle generates vibration, noise, premature wear, and loss of efficiency in the transmission. Choosing this component correctly is not optional in a car prepared for competition.

Reverse version: when is it needed?

The reverse (RS) version inverts the tooth orientation compared to the standard crown. It is used when the motor mounting requires the pinion to rotate in the opposite direction to the usual — something that occurs in certain chassis or motor positions — to maintain the correct forward motion of the car. If your setup requires it, replacing a standard crown with a reverse makes the difference between a car that moves forward and one that moves backward.

Compatibility and mounting

This crown is part of Scaleauto's spare parts catalogue for its competition lines. It is designed to mesh with anglewinder pinions from the same range. Before purchasing, verify that your motor pinion is compatible in module and that the 25° angle corresponds to your chassis configuration.

Frequently asked questions

What is the difference between an anglewinder crown and a sidewinder?

A sidewinder crown has a straight tooth cut or a specific angle for motors positioned parallel to the rear axle. An anglewinder crown, like this one, has the tooth cut at 25° to adapt to the motor's tilt in that type of configuration. They are not interchangeable.

Can I use this crown on any anglewinder chassis?

Only if the motor mounting angle on that chassis is 25°. Each manufacturer may work with different angles, so you must confirm your chassis specification before installing it.

What exactly is the reverse version?

It is a crown with the tooth cut in inverted orientation compared to the standard version. It is used in setups where the pinion rotates in the opposite direction to the usual so that the car continues to move forward correctly on the track.

Which pinions is this crown compatible with?

With the anglewinder pinions from the Procomp-RS range of Scaleauto that are compatible in module and angle. Check Scaleauto's catalogue or contact us if you have questions about the pinion-crown combination for your setup.

How many crowns does this item include?

The available information does not specify whether it is sold in individual units or in a pack. We recommend checking the product description or contacting us to confirm before placing your order.

The Scaleauto Procomp-RS 32-tooth reverse anglewinder crown (25°, ref. SC-1172br) is a precision slot car spare part designed for anglewinder motor configurations. Essential for competitive slot car racing setups, this reverse-cut gear ensures correct motor-to-axle engagement when the pinion rotates in the opposite direction. Compatible with Scaleauto Procomp-RS range components. Ideal for club racing, home track tuning, and serious slot car preparation.

Information not found

The internal diameter of the crown hole, the exact module of the tooth cut, and the specific pinions it is compatible with outside the Scaleauto Procomp-RS range could not be confirmed with verified sources. If you need this data for your setup, we recommend contacting us directly.