Inline low friction pinions 11 Teeth (x2) EVO3

NSR EVO3 inline pinions: direct transmission with no unnecessary friction

When it comes to fine-tuning the transmission in a slot car with inline motorisation —that is, with the motor aligned with the rear axle— the pinion is one of the elements that most influences the final behaviour. A pinion with high friction or excessive play can ruin even the most meticulous preparation work. These NSR 11-tooth EVO3 pinions are designed to avoid exactly that.

Features and function

• 11 teeth: tooth design aimed at providing a nimble gear ratio in inline configurations, especially useful on circuits with medium and high acceleration sections.
• Low friction: the treatment and material of the pinion reduce internal resistance in the transmission, resulting in higher top speed and less heating of the motor-crown gear assembly.
• EVO3 version: updated generation within the NSR range, with tighter tolerances compared to previous versions for a more precise fit with the crown gear.
• Pack of 2 units: allows for having a spare ready or experimenting with different configurations in two cars at once.

Compatibility and applications

These pinions are designed for inline setups, where the motor is placed longitudinally relative to the rear axle, lowering the car's centre of gravity. This type of configuration is common in NSR chassis designed for this motor layout.

To achieve the best performance, it is essential to combine them with NSR crown gears compatible with the EVO3 generation. A poor pairing between pinion and crown gear can generate noise, vibration, and premature wear, negating the advantages of low friction.

Installation and preparation

The installation process is straightforward, but it is advisable to check the alignment of the pinion on the motor shaft and ensure that the engagement with the crown gear is correct: neither too tight nor with excessive play. A small adjustment in the motor position on the mount can make the difference between a quiet transmission and one that vibrates on the straights.

If lubrication is used, apply it sparingly: on low-friction pinions, excess lubricant can attract dirt and end up increasing resistance instead of reducing it.

Who are they intended for?

Both for the enthusiast who wants to fine-tune their club car and for the more demanding preparer seeking consistency in racing. The NSR EVO3 pinions are a benchmark in the competition spare parts segment, and having 2 units in the toolbox is always practical.

Frequently asked questions

Are they compatible with all NSR motors?

They are designed for inline configurations. Check that the motor shaft diameter is compatible before installing them, as NSR has motors with different shaft diameters.

What is the difference between the EVO3 version and previous versions?

The EVO3 version incorporates tighter tolerances and refined tooth geometry, improving the fit with the crown gear and reducing residual friction compared to previous generations.

Can I use them in a sidewinder or anglewinder setup?

These pinions are optimised for inline setups. For sidewinder or anglewinder, NSR has specific references adapted to each configuration.

Which crown gear should I combine them with?

It is recommended to use NSR crown gears from the EVO3 range to ensure correct engagement. The choice of the number of teeth on the crown gear will depend on the circuit and the motor used.

Why does it include 2 units?

The pack of 2 units allows for always having a spare on hand —essential in competition— or preparing two cars simultaneously with the same transmission configuration.

NSR inline pinions 11 teeth EVO3 low friction — pack of 2 units. Precision-engineered for inline motor configurations in 1/32 slot car racing. Reduced internal friction for better top speed and smoother power transfer. Compatible with NSR EVO3 crown gears. Essential spare part for club racing and serious slot car preparation.