36z anglewinder crown gear

36-tooth anglewinder crown gear for 2.38 mm axle: precise transmission in every corner

The 36-tooth anglewinder crown gear from Avant Slot (reference AV20629) is a transmission component made of aluminium, specifically designed for anglewinder configuration setups. With a tooth count of 36z and direct mounting on a 2.38 mm axle using an M2 screw —included in the package— it offers a concrete and well-defined solution for those working with slot cars in this type of motorisation.

Technical specifications

• Mounting type: anglewinder (motor angled relative to the rear axle)
• Number of teeth: 36z
• Material: aluminium
• Compatible axle diameter: 2.38 mm
• Fixing: M2 screw (included)
• Reference: AV20629

Function and performance

In an anglewinder configuration, the motor is positioned at an angle relative to the rear axle, allowing for a different weight distribution compared to sidewinder or inline setups. The crown gear is the last link in the transmission chain: its tooth count, along with that of the motor pinion, determines the gear ratio and, therefore, the maximum speed and acceleration of the car.

With 36 teeth, this crown gear is oriented towards longer gear ratios when combined with low-tooth pinions, which can favour top speed on tracks with long straights. Adjusting the pinion-crown combination is one of the fundamental steps in preparing a slot car to adapt it to each circuit.

Aluminium provides lightness and good wear resistance, being a common material in competition crowns where unpowered weight is relevant.

Compatibility and mounting

This crown gear is designed for 2.38 mm axles, a standard size in many competition slot cars. The fixing with an M2 screw facilitates mounting and dismounting without the need for special tools, and allows for axial position adjustment of the crown gear to achieve the correct engagement with the pinion.

For optimal operation, it is important to verify that the play between the pinion and crown gear is appropriate: too tight generates friction and heat; too loose produces noise and premature wear. A cigarette paper or a thin calibration sheet are simple tools to adjust this play accurately.

Ideal for…

Preparers and club drivers working with anglewinder chassis who need to adjust the gear ratio for different circuits. Also for those replacing worn parts in their regular competition car and looking for an aluminium crown gear with good performance at a reasonable price.

Frequently asked questions

Is this crown gear exclusive for anglewinder setups or can it also be used for sidewinder?

It is designed for anglewinder configuration. Although the axle may physically be the same (2.38 mm), the pinion's attack angle varies depending on the type of motorisation, so it is advisable to use the specific crown gear for each configuration.

Is the M2 screw included?

Yes, the M2 fixing screw is included in the package.

How does the number of teeth on the crown gear affect the car's behaviour?

With a higher number of teeth on the crown gear (keeping the pinion), the gear ratio is longer: the car reaches higher top speed but accelerates slightly slower. With fewer teeth, the ratio shortens and acceleration improves at the cost of some maximum speed. The optimal adjustment depends on the track layout and the motor used.

Which pinions is it compatible with?

The available information does not specify particular compatible pinions. We recommend consulting with the Ministry of Hobby team to ensure that the pinion-crown combination is suitable for your setup.

Is it suitable for use in official competition?

As it is an aluminium replacement part from Avant Slot, its use in competition will depend on the specific regulations of the championship or club. Check the applicable rules before mounting any part on your competition car.

The Avant Slot AV20629 is a 36-tooth anglewinder crown gear machined in aluminium, designed for 2.38 mm axles and secured with an included M2 screw. A key slot car transmission part for anglewinder setups, this crown gear allows precise gear ratio tuning to optimise top speed and acceleration on any track layout. Compatible with standard 2.38 mm rear axles, it is a reliable choice for club racers and slot car builders looking for lightweight, durable drivetrain components.