ULTRAGRIP rear tyres 19x13 for 16.5/17x4

NSR ULTRAGRIP 19x13 Rear Tyres: Real Grip for Air System Wheel

The NSR tyres from the ULTRAGRIP range are among the most valued references by drivers seeking consistency and grip in every corner. This reference, NSR5294U, is specifically designed for the rear axle and fits wheels with diameters of Ø16.5 and 17 mm with a profile of 4 mm, corresponding to NSR codes 5030 and 5031, including the popular wheels from the Air System.

Technical Features

• Tyre Dimensions: Ø 19 mm × 13 mm wide
• Wheel Compatibility: Ø 16.5 mm and Ø 17 mm × 4 mm (codes NSR 5030 / 5031)
• Compatible with Air System wheels
• Outer Diameter when Mounted: Ø 20 mm
• Range: ULTRAGRIP
• Position: rear axle

NSR's ULTRAGRIP Compound

NSR developed the ULTRAGRIP range to meet a clear demand in club competition and demanding recreational use: more bite without sacrificing durability. The compound is formulated to perform well from the first metres, without needing long break-in periods to reach operational temperature. This makes it a very practical option for both training sessions and championship days.

The width of 13 mm provides a good contact patch on the rear profile, contributing to stability in corners without adding unnecessary weight to the assembly.

Compatibility and Mounting

These tyres are specifically designed for NSR wheels of Ø16.5 and Ø17 mm with a profile of 4 mm. If you are using NSR Air System wheels (codes 5030 or 5031), the fit is direct. Once mounted on the wheel, the resulting outer diameter is Ø 20 mm, a relevant detail for adjusting the gear ratio or matching ride heights between different chassis configurations.

Before mounting, it is advisable to clean the wheel with isopropyl alcohol to remove any grease or release agent that may reduce the tyre's grip on the rim. If you are going to glue the tyre, use a specific rubber-plastic adhesive sparingly to avoid altering the wheel's balance.

Ideal for…

• Drivers using NSR chassis with Air System wheels on the rear axle.
• Configurations requiring an outer diameter of Ø 20 mm on the rear axle.
• Club competition and recreational use where a compound with good grip from the start is sought.

Considerations

Always check the diameter of your wheels before ordering tyres: the difference between a Ø16.5 wheel and a Ø17 wheel can affect the final fit and the outer diameter of the rolling surface. NSR provides clear nomenclature in its wheel references, so consult the code (5030 or 5031) to confirm compatibility before mounting.

Frequently Asked Questions

Are these tyres compatible with wheels from other brands?

They are designed and validated for NSR wheels of Ø16.5 and Ø17 mm with a 4 mm profile. Compatibility with wheels from other brands depends on them sharing exactly those measurements; if in doubt, the most reliable method is to measure the wheel and compare it with the indicated dimensions.

What is the outer diameter of the tyre once mounted?

When mounted on a Ø16.5 or Ø17 mm wheel, the resulting outer diameter is Ø 20 mm. This information is useful for calculating the gear ratio or for leveling the ride height of the car.

What is the difference between the ULTRAGRIP range and other NSR compounds?

The ULTRAGRIP range is formulated to provide greater grip from the start of the session. Other NSR compounds may be aimed at greater durability or specific track conditions. If you have questions about which compound best fits your driving style or type of track, please consult us.

Do these tyres need to be glued to the wheel?

It is not mandatory, but in competition, it is common to glue the tyres to prevent them from shifting under lateral load. If you decide to glue them, use a minimal amount of adhesive and distribute it evenly to avoid creating imbalances in the wheel.

Do these tyres need truing before use?

In competition, truing mounted tyres is a common practice to achieve the exact diameter and a perfectly concentric rolling surface. In recreational use, it may not be necessary, but if you are looking for maximum performance, it is worth doing.

NSR ULTRAGRIP 19x13 rear tyres for slot car racing, compatible with Air System rims Ø16.5/17 mm x 4 mm (NSR cod. 5030/5031). Mounted outer diameter Ø20 mm. High-grip compound designed for consistent traction from the first laps, suitable for club racing and performance-oriented setups on 1:32 scale slot cars.