4 x Soft spring for vertical displacement guide

Tectime TT900 Soft Springs: Smooth Vertical Movement and Precise Return for Your Guide

When tuning a slot car for competition or simply to ensure it performs well on track, the guide is one of the elements that most influences stability and electrical contact with the rail. A spring that is too stiff can cause the guide not to follow the track's elevation changes correctly; one that is too soft can generate unwanted float. The TT900 from Tectime is manufactured with the premise of offering the least possible resistance to vertical movement, allowing the guide to follow the track naturally and return to its initial position as soon as the car regains contact with the track.

Function and Performance

The soft spring acts as a suspension element for the guide. When passing over joints, elevation changes, or sections with slight irregularities, the guide needs to be able to move up and down freely to maintain constant contact of the braids with the rail. A spring with the appropriate hardness — in this case, specifically calibrated towards the softer side — minimizes electrical contact loss and improves the car's stability under acceleration.

• Soft hardness: designed to offer minimal resistance to the vertical movement of the guide.
• Controlled return: when the car is on the track, the guide smoothly returns to its resting position without bouncing.
• Tectime manufacturing: reference TT900, a specific tuning component for improving the guide.
• Contents: blister pack with 4 units.

Installation and Preparation

Changing the spring in the guide is a straightforward operation but has a real impact on the car's behaviour. Replacing the original spring with a softer one is often recommended on tracks with pronounced joints or in cars whose guide tends to lose contact during elevation changes. When installing the TT900, it is advisable to check that the guide housing is clean and free of burrs so that the spring operates without additional friction.

Compatibility

Tectime does not specify a closed list of compatibilities by brand or car model for this product. Before placing an order, we recommend verifying that the diameter and length of the spring fit your guide's housing. If you have any doubts, contact our technical team for guidance.

Common Mistakes

• Installing a spring that is too soft on perfectly flat tracks can result in excessive free movement of the guide, with slight loss of precision in guiding.
• Not cleaning the housing before installing the new spring can cause the spring to rub and not operate throughout its full travel.
• Confusing the orientation of the spring if it has different ends: always check the orientation recommended by the guide support manufacturer.

Frequently Asked Questions

What is the purpose of changing the guide spring?

The spring determines how easily the guide moves up and down within its housing. A softer spring improves track following on uneven sections and reduces electrical contact loss in the braids.

What is the difference between a soft spring and a hard one?

The soft spring offers less resistance to vertical movement, which helps the guide react to any changes in track elevation. The hard spring keeps the guide firmer in its position, which may be preferable on very flat tracks or in competition setups where precision is sought over adaptability.

How many units does the TT900 pack include?

The blister pack includes 4 soft springs, allowing you to equip several cars or have spares for future maintenance.

Is it compatible with any slot car?

Tectime does not provide a closed list of compatibilities for this reference. We recommend checking the dimensions of your guide's housing before installing them. Our technical team can help you confirm compatibility with your model.

Can I combine this spring with any type of guide?

In principle, yes, as long as the dimensions of the spring fit in the guide's housing. The TT900 is designed for vertically displaced guides, so it is in that type of installation where it offers its best performance.

The Tectime TT900 is a pack of 4 soft springs designed for vertical-displacement slot car guides. These springs allow smooth downward travel and precise return to the rest position, ensuring consistent rail contact and stable electrical connection through the braids. An essential tuning component for slot car enthusiasts looking to improve guide performance on uneven track surfaces.