Short soft suspension springs

Thunderslot Short Soft Suspension Springs: Fine Tuning for the Motor Pod

The reference TH-SSK007S corresponds to the short soft suspension springs from Thunderslot, with dimensions of 5x5.5 mm, specifically designed for use in the motor pod. They are the component that makes a difference when we seek a more progressive and controlled response on circuits with a lot of rhythm changes or on surfaces that penalise abrupt grip.

Function and Performance

In a chassis with suspension, the spring is the element that regulates how much pressure the motor —and with it the mechanical assembly— exerts on the track. A soft spring like this allows the motor pod to yield more easily to the irregularities of the layout, maintaining a more uniform contact of the rear tyres and reducing the bounces that rob traction.

The short variant (5x5.5 mm) is intended for setups where the suspension travel is limited or where a lower preload is desired, resulting in a setup that is more sensitive to small configuration changes.

Compatibility and Installation

These springs are original components of the Thunderslot suspension system, so the fit is guaranteed in the chassis and motor pods of the brand itself. If you use them in alternative setups, check the dimensions of the housing beforehand to ensure that the length and diameter are compatible with your application.

• Dimensions: 5 x 5.5 mm
• Hardness: soft
• Length: short
• Application: motor pod with suspension
• Brand: Thunderslot

Installation and Preparation

To get the most out of this spring, we recommend working with the chassis level and checking the preload before each test session. A well-adjusted soft spring improves traction in slow corners and chicanes, but can compromise stability on fast sections if the travel is not properly limited. The key is to find the balance with the rest of the setup: tyre hardness, body height, and overall weight.

Ideal for…

This spring fits particularly well in setups aimed at circuits with a technical layout, where smooth response takes precedence over rigidity. It is also a good option for drivers looking for a car that is easier to drive and with less tendency to oversteer abruptly on corner exit.

Frequently Asked Questions

What is the difference between a soft spring and a hard spring in the motor pod?

A soft spring allows greater movement of the motor pod in response to track irregularities, resulting in more consistent tyre contact and smoother response. A hard spring offers more stiffness and stability but can cause more bounces on uneven surfaces.

What advantage does the short variant have over the long one?

The short version generates a lower preload, making the suspension more sensitive and reactive to small adjustments. It is preferable when the motor pod housing has limited travel available or when a more precise tuning is sought.

Can I use these springs in chassis from other brands?

As long as the housing dimensions are compatible (5 mm diameter and 5.5 mm length), it is possible. Check the measurements before installing them to ensure that the spring seat is appropriate.

How many springs are included in the pack?

The provided information does not specify the exact quantity of units per pack. We recommend checking the product details on the store sheet or contacting our team to confirm.

How often should suspension springs be checked or replaced?

It depends on usage and the circuit. In club racing with regular sessions, it is advisable to inspect the springs every few race days, looking for permanent deformations or loss of tension that may alter the car's behaviour.

Thunderslot short soft suspension springs (ref. TH-SSK007S), measuring 5x5.5 mm, are designed for the motor pod in slot car chassis requiring a progressive and smooth suspension response. These small but critical components allow fine-tuning of the rear axle contact and traction, making them a popular choice among club racers and advanced builders looking to optimize their slot car setup for technical layouts.