Lateral spring bench L8x9E x4

Four lateral bench springs to tune your Bolt system chassis

The Lateral Bench Spring L8x9E (reference SRCRM0829) comes in a pack of 4 units and is specifically designed for benches that use the "Bolt system". It is a key tuning component: the lateral spring determines the lateral stiffness of the bench and, therefore, directly influences how the car absorbs lane changes, curbs, and rapid curve transitions.

Technical specifications

• Spring length: 8 mm
• Number of coils: 9
• Outer diameter of the spring: 4.45 mm
• Wire diameter: 0.20 mm
• Pack contents: 4 lateral springs

Function and performance

In a floating bench with "Bolt system", the lateral springs work in parallel to the rear axle to control the lateral movement of the bench relative to the chassis. A stiffer spring reduces roll and provides greater stability in fast and high-speed corners; a softer one allows for more freedom of movement, favouring grip on technical tracks with many direction changes.

The L8x9E profile —8 mm in length and 9 coils with a wire diameter of 0.20 mm— corresponds to a medium-soft hardness, designed to provide progressive response without locking the movement of the bench. A common choice for mixed circuits or when seeking a balance between stability and traction.

Compatibility

According to the manufacturer's information, these springs are valid for models with "Bolt system" from the following categories:

• LMP1 "Toyota"
• IMSA
• GT
• Other categories that use the "Bolt system"

Before placing your order, verify that your model has a bench with "Bolt system", as it is not compatible with fixed bench chassis or other anchoring systems.

Assembly and preparation

Changing lateral springs is a simple operation but should be done carefully to avoid deforming or pre-tensioning the spring during assembly. We recommend using fine-tipped pliers and ensuring that the spring is correctly seated in its housings before closing the chassis. Once assembled, check that the bench has symmetrical lateral freedom of movement on both sides.

To fine-tune the setup, it is common to combine springs of different hardnesses depending on the track: softer springs for slow and technical circuits, harder ones for ovals or high-speed tracks with few tight corners.

Frequently asked questions

What is the difference between changing the lateral spring and the central spring of the bench?

The central (or longitudinal) spring controls the movement of the bench along the car's forward axis, while the lateral springs regulate the roll of the bench along the transverse axis. Both work together but affect different aspects of track behaviour.

Can I mix springs of different hardness on the same axle?

Technically it is possible, but it is not recommended as a starting point. Using springs of different hardness on each side can create asymmetrical behaviour that makes controlling the car difficult. It is common to start with equal pairs and adjust from there.

How many units does the SRCRM0829 pack include?

The pack includes 4 lateral bench springs with the L8x9E specifications.

How do I know if my model has the "Bolt system"?

The "Bolt system" is a floating bench system identifiable by its anchoring with specific bolts or screws that allow controlled lateral movement. Check your model's manual or contact us if you have questions about compatibility.

How often should I check or change these springs?

It depends on usage. In club racing, it is good practice to check them at the beginning of each season or after intensive running sessions. A deformed spring, with open coils or that has lost tension should be replaced to maintain the correct setup.

The SRCRM0829 is a pack of 4 lateral springs for floating pod systems using the "Bolt system" design. With a length of 8 mm, 9 coils, 4.45 mm outer diameter and 0.20 mm wire diameter, these springs are compatible with LMP1 Toyota, IMSA and GT slot car models. An essential tuning part for slot car racing setup and chassis preparation.