Ultrasoft braid (10pcs)

NSR Ultrasoft Braids: Fine Contact, Direct Response, and Always Active Track

Braids are one of those components that go unnoticed until they start to fail. Poor electrical contact results in micro-cuts, erratic throttle response, and performance loss that is often mistakenly attributed to the motor or chassis. With the Ultrasoft NSR4849 braids, that problem is solved at its root thanks to an extremely flexible fibre material and a thickness of just 0.2 mm.

Main Features

• Dimensions: 3.5 x 34 mm
• Thickness: 0.2 mm
• Contents: pack of 10 units
• Reference: NSR4849
• Ultrasoft Construction: high flexibility fibre that precisely adapts to the track surface

Function and Performance

The term ultrasoft is not just a marketing claim: it refers to the softness of the bundle of metallic fibres that make up the braid. The softer and more flexible the material, the less pressure it exerts on the track and the lower the mechanical resistance to the guide's sliding. This translates into two direct advantages:

1. More consistent electrical contact: the fibres better adapt to the track's irregularities, reducing micro-cuts that cause power losses or unintentional braking.
2. Less friction on the guide: by not opposing mechanical resistance, the car maintains its line more naturally, especially in chicanes and fast corners where the guide-braid assembly works under greater demand.

The thickness of 0.2 mm is another relevant detail: a braid that is too thick can hinder proper seating in the guide or generate excessive pressure against the track, which over time wears out both the braid and the track more quickly. This thin and ultrasoft format is especially appreciated in club competition, where fine-tuning each component makes a difference.

Compatibility and Installation

These braids are designed to be mounted on standard guides of 1/32 slot cars and are compatible with models from the NSR brand itself. Before installing them, it is advisable to check that the dimensions (3.5 x 34 mm) fit the guide housing of your car.

Installation is straightforward: remove the worn braids, clean the guide contacts with a bit of isopropyl alcohol, and place the new ones ensuring they are well seated and make uniform contact along their length. Poor seating at one end can reproduce exactly the same symptoms as a worn-out braid.

Common Mistakes

• Not checking the condition of the track: a new braid on a dirty or damaged track will not improve contact. Clean the track first.
• Reusing deformed braids: when the fibres lose their original shape, the contact surface is drastically reduced. The pack of 10 units allows for easy renewal.
• Installing braids of incorrect dimensions: always check that the dimensions match those specified for your guide.

Frequently Asked Questions

How often should I change the braids?

It depends on track time and the type of track. In intense competition sessions, many drivers check them every two or three runs. In recreational use, it is sufficient to inspect them when you notice a loss of response or micro-cuts. The pack of 10 units covers several replacements.

Are they compatible with Scalextric or Ninco tracks?

The braids themselves are independent of the type of track; what matters is that the dimensions fit the car's guide. If your car's guide accepts braids of 3.5 x 34 mm, you can run on any track system.

Does the term "ultrasoft" mean they wear out faster?

Not necessarily. A softer braid generates less friction and, in many cases, wears out more evenly. The final durability also depends on the cleanliness of the track and the pressure of the guide.

Can I use them on cars from brands other than NSR?

Yes, as long as the dimensions (3.5 x 34 mm) are compatible with the guide housing of the specific car. Measure before installing.

What is the difference between an ultrasoft braid and a standard one?

The ultrasoft uses finer and more flexible fibres, which improves adaptation to the track and reduces mechanical resistance. For competitive use or on very demanding tracks, they are often preferred over stiffer versions.

NSR Ultrasoft braids (NSR4849) — a premium set of 10 ultra-thin braid contacts measuring 3.5x34 mm with just 0.2 mm thickness, engineered for consistent electrical contact and minimal mechanical friction in 1/32 slot car racing. A go-to choice for club competitors looking to fine-tune every detail of their slot car setup.