SLICK TYRE 20.5x11 ULTRAGRIP

NSR UltraGrip Tyres: The Grip That Makes a Difference on Track

NSR is one of the most solid references in the sector when it comes to high-performance slot car spare parts. Their tyres are the result of years of competition-oriented development, and the UltraGrip range represents their proposal for maximum adhesion for those seeking consistent grip lap after lap.

Features and Function

• Size: 20.5 x 11 mm
• Compatible Rim: 17" — suitable for NSR C6R, R8, and R18 rims
• Compound: UltraGrip, formulated to provide a wide and stable contact patch
• Type: Slick (no tread), optimised for smooth indoor track surfaces
• Reference: NSR5231EVO

On-Track Performance

The slick profile maximises the contact surface with the track, resulting in more direct and predictable traction. NSR's UltraGrip compound is designed to offer grip without sacrificing the car's response: you feel the track, sense the limits, and can work on the setup with precision.

Being a tyre specifically sized for 17" rims, the fit is precise and free of play, which prevents vibrations or imbalances that could affect dynamic behaviour.

Compatibility

This tyre is designed for NSR 17" rims of the C6R, R8, and R18 models. If you have questions about compatibility with your specific chassis or rim, consult the NSR spare parts catalogue or ask us directly: we have experience with the entire range.

Installation and Preparation

For optimal performance, we recommend mounting the tyre carefully to avoid deforming it during installation. Once mounted, light and even sanding with fine sandpaper or a lathe helps achieve a perfectly concentric rolling, significantly improving stability at high speeds. Progressive running in during the first laps allows the compound to reach its working temperature and develop its full grip potential.

Ideal For…

• Club drivers competing with NSR cars who seek consistency from tyre to tyre.
• Enthusiasts looking to improve their slot car's performance without changing the chassis.
• Preparers working with NSR C6R, R8, or R18 rims who need a reference tyre.

Frequently Asked Questions

Which rims is this tyre compatible with?

The NSR5231EVO is compatible with NSR 17" rims: specifically the C6R, R8, and R18 models. It is important to respect the rim size for a proper fit and vibration-free rolling.

What is the difference between the UltraGrip compound and other NSR compounds?

The UltraGrip range is formulated to provide greater adhesion under normal indoor track conditions. It is a highly valued option in club racing for its balance between grip and durability.

Do I need to sand or lathe the tyre after mounting?

It is not strictly mandatory, but it is highly recommended. Light turning or sanding ensures that the tyre rolls perfectly concentric, improving stability and actual grip on track.

How many tyres are included in the pack?

We recommend checking the product information or consulting us directly, as NSR sells its tyres in both two-unit packs and individual formats depending on the reference.

Are they suitable for wooden tracks or only for plastic tracks?

The UltraGrip compound performs well on both types of surfaces, although its performance may vary depending on the condition and material of the track. On well-maintained wooden tracks, grip is usually particularly effective.

The NSR5231EVO UltraGrip slick tyre in 20.5x11 mm is a top choice for slot car racing enthusiasts looking for consistent grip and reliable performance. Designed for NSR 17" rims (C6R, R8, R18), this slick compound tyre delivers excellent traction on indoor tracks. A must-have spare part for NSR slot car preparation, club racing, and competitive tuning.