Straight tooth crown z35 sidewinder

Direct and precise transmission for your Sidewinder setups

The Z35 Straight Cut Crown Gear (SLPL8135) from Sloting Plus is a transmission component specifically designed for Sidewinder configurations, where the motor operates parallel to the rear axle. With 35 teeth, a diameter of Ø17.5 mm, and a shaft of 2.38 mm (3/32"), it fits precisely into the most common transmission assemblies in slot car preparation.

Main features

• Number of teeth: 35 (Z35)
• Diameter: Ø17.5 mm
• Shaft: 2.38 mm – 3/32"
• Tooth type: Straight
• Configuration: Sidewinder (motor parallel to the rear axle)
• Manufacturer: Sloting Plus

Function and performance

Straight teeth provide direct torque transmission without angular losses, making them the most common choice for Sidewinder setups where the motor pinion and crown gear share the same working plane. A good coupling between pinion and crown is crucial to avoid vibrations, reduce premature wear, and maintain consistent response throughout the session.

The Z35 with Ø17.5 mm offers a gear ratio that favours a balance between acceleration and top speed, making it a popular choice in club racing cars that need to maximise motor performance without sacrificing cornering agility.

Compatibility and installation

This crown gear is compatible with rear axles of 3/32" (2.38 mm), a standard size in a large part of the chassis and kit preparation market. To get the most out of it, pair it with the appropriate pinion according to the installed motor, paying attention to the tooth module to ensure a clean and backlash-free engagement.

Sloting Plus manufactures its spare parts and tools with tight tolerances, facilitating assembly and minimising post-installation adjustments. Nevertheless, as with any precision transmission, it is recommended to check the play between pinion and crown once installed and before the first session.

Common mistakes

• Confusing the tooth module: not all Z35 crowns are compatible with each other if they differ in module. Ensure that the pinion and crown share the same module before installation.
• Over-tightening the fixing screw: this can deform the shaft or create eccentricity in the crown, affecting performance.
• Omitting the play check: an overly tight engagement generates heat and wear; too loose, loss of response and noise.

Frequently asked questions

What is the difference between a straight-cut crown and a helical one?

Straight teeth transmit torque directly and are easier to align, making them ideal for standard Sidewinder setups. Helical gears reduce noise and improve transmission smoothness but require more careful alignment and generate some axial load on the shaft.

Which pinions is this crown compatible with?

It must be paired with a pinion of the same module. Check the specifications of your motor's pinion to ensure that the tooth module matches that of this Z35 crown from Sloting Plus.

Is it valid for club racing?

Yes. The Sloting Plus spare parts range is aimed at both amateur preparers and club competitors. The choice of the Z35 will depend on the gear ratio you seek based on the motor and the circuit.

Can I use it on an Inline chassis if the axle is 3/32"?

The term "Sidewinder" indicates the motor configuration for which the transmission assembly is designed. In an Inline setup, the rear axle can also be 3/32", but the gear engagement angle is different; always check compatibility with your specific chassis.

How many teeth do I need to go faster?

A crown with fewer teeth (paired with a larger pinion) lowers the gear ratio and favours top speed. A crown with more teeth improves acceleration. The Z35 is a middle option that works well on mixed circuits.

The Sloting Plus SLPL8135 is a 35-tooth straight-cut crown gear for Sidewinder slot car setups, featuring a 17.5 mm diameter and a 2.38 mm (3/32") axle fit. A reliable transmission component for club racing and home layout preparation, compatible with standard 3/32" rear axles widely used across the slot car market.