11t nylon pinion (4 pcs)

Four 11-tooth nylon pinions for tuning your slot transmission

The pinion is one of the most crucial components in the setup of any slot car. A change in tooth count can completely transform track behaviour: more acceleration out of corners, higher top speed, or a more progressive response in turns. This pack of four 11-tooth nylon pinions (reference CX1058-11) allows for precise adjustment of the transmission ratio without having to acquire parts one by one.

Function and performance

Nylon is the most common material for entry-level and club slot pinions due to its light weight, quiet operation, and ability to absorb minor alignment inaccuracies between the pinion and crown gear. Compared to metal versions, it generates less noise and is more forgiving on the crown gear in home or club track configurations with intensive use.

With 11 teeth, this pinion is aimed at achieving a longer gear ratio in combination with high-tooth-count crowns, which favours top speed on circuits with long straights. It is a very common starting point for transmission adjustments on oval tracks or fast circuits.

Compatibility and installation

Before installation, always check the inner diameter of the pinion and the diameter of your car's motor shaft to ensure compatibility. The module of the pinion must also match the module of the crown gear you are using. If you have doubts about which crown to combine, consult the technical data sheet of your model's transmission set.

The pack of 4 units is particularly practical: you will have spare parts available for several cars or for quick replacement in case of wear, without relying on an urgent order in the middle of a preparation session.

Common mistakes

• Not verifying the module: a pinion with a module of 0.5 does not mesh correctly with a crown gear of module 0.4 even if the teeth appear to fit at first glance. Always check that the pinion and crown module match.
• Forcing the fit on the shaft: nylon tolerates some elasticity, but forcing a pinion with an incorrect inner diameter can create play or slipping. Verify the diameter before installation.
• Ignoring lateral alignment: although nylon is forgiving, poor lateral alignment between the pinion and crown gear accelerates wear and can cause vibrations during operation.

Frequently asked questions

How many pinions are included in the pack?

The pack contains 4 nylon pinions with 11 teeth, reference CX1058-11.

What is the difference between a nylon pinion and a metal one?

Nylon is lighter and quieter, and is gentler on the crown gear during continuous use. Metal offers greater rigidity and durability under high-stress conditions, but generates more noise and can wear the crown gear more quickly if alignment is not perfect.

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

A pinion with fewer teeth relative to the crown gear produces a shorter ratio: more acceleration but lower top speed. Increasing the teeth on the pinion (or reducing those on the crown) lengthens the ratio and favours speed on straights. With 11 teeth, the adjustment will depend on the tooth count of the crown gear you use.

What crown module is this pinion compatible with?

We do not have official confirmation of the exact module for this reference. We recommend verifying it with the supplier or checking the manufacturer's technical data sheet before combining it with a specific crown gear.

For what type of circuits is an 11-tooth pinion most suitable?

Generally, when combined with high-tooth-count crowns, an 11-tooth pinion favours top speed, making it interesting for circuits with long straights. On more technical tracks with many curves, a pinion with fewer teeth may be preferred to improve acceleration out of corners.

The CX1058-11 is a pack of four 11-tooth nylon pinions designed for slot car transmission tuning. Nylon pinions offer smooth, quiet operation and are ideal for club racing and home track use. Adjusting the pinion-to-crown ratio is a key step in slot car setup, influencing top speed and acceleration. Compatible with standard slot car motor shafts, this pack provides excellent value for those preparing multiple cars or keeping spares ready for competition. Available at Ministry of Hobby, your reference store for slot car parts, accessories, and high-end hobby supplies.