SPECIAL RTR BLACK tyres 19x13 16.5/17

NSR Special RTR Black Rear Tyres: precise measurements for your slot car rear end

The NSR5294RB are rear tyres from the Special RTR Black range, manufactured by NSR with dimensions of Ø19 mm x 13 mm wide. They are specifically designed to fit the rear rims of Ø16.5/17 mm from NSR (codes 5030 and 5031), and are fully compatible with the Air System rim system from the same brand.

Once the tyre is mounted on the corresponding rim, the total outer diameter of the assembly is Ø20 mm, a key figure when calculating the gear ratio and the car's rolling behaviour.

Technical specifications

• Tyre dimensions: Ø19 mm x 13 mm wide
• Compatible rims: Ø16.5/17 mm — NSR codes 5030 and 5031
• Compatible with Air System rims
• Mounted outer diameter: Ø20 mm
• Reference: NSR5294RB
• Finish: Black

Function and performance

The tyres from the Special RTR line of NSR are designed for direct mounting on RTR (Ready to Race) cars or club setups that seek a balance between grip and durability. The Black compound is the general-use option within the range, suitable for most plastic and wooden track surfaces, without the need for special prior treatments.

The 19x13 mm size provides a generous contact patch for the rear axle, resulting in stable and predictable traction, especially in tight corners and chicanes. The final diameter of Ø20 mm is one of the most common in 1/32 slot car rear configurations, facilitating integration into standard setups without recalculating gear ratios.

Compatibility and mounting

These tyres are exclusively mounted on NSR rims of Ø16.5 or 17 mm (codes 5030/5031). Compatibility with the Air System is particularly relevant: NSR Air System rims include small perforations that allow for a more uniform tyre fit, reducing deformation and improving the concentricity of the wheel-tyre assembly.

For optimal mounting, it is recommended to clean the rim before placing the tyre and ensure that the tyre sits evenly around the entire circumference. If eccentricity is detected, light sanding around the mounted axle will correct the issue without altering the compound.

Ideal for…

• Club competitors using NSR cars on wooden or plastic tracks.
• Drivers mounting Air System rims and seeking directly compatible replacement tyres.
• Preparers wanting to maintain the standard rear diameter of Ø20 mm without modifying the transmission.
• RTR enthusiasts wishing to replace original tyres with new units of the same profile.

Points to consider

Always check the rim code before ordering: these tyres are for Ø16.5/17 mm rims (5030/5031) and are not interchangeable with other sizes in the NSR range without verifying the fit. The Black compound is the standard for general use; if you seek greater grip on wooden tracks, NSR offers other compounds specifically for those surfaces.

Frequently asked questions

How many units are included in the NSR5294RB pack?

The product information does not specify the number of units per pack. We recommend checking the detailed product sheet in-store or contacting our team to confirm before placing your order.

Are they compatible with all NSR 17 mm rims?

They are compatible with NSR rims of Ø16.5/17 mm with codes 5030 and 5031, including Air System versions. For other NSR rims with different codes or diameters, it is advisable to verify the inner measurement before mounting them.

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

The Black compound is NSR's general-purpose and versatile option, suitable for most surfaces without the need for special preparation. Other compounds in the range, such as Ultra Soft or Silicone, are aimed at specific surfaces or competition where maximum grip is prioritised over durability.

Do I need to sand these tyres before use?

It is not essential for RTR or club use. However, if maximum concentricity is desired, a light sanding with the tyre mounted and rotating on the axle can eliminate any storage deformation and achieve a more uniform contact with the track.

Does the Ø20 mm diameter affect the gear ratio?

Yes, the outer diameter of the mounted tyre directly influences the final speed of the car for a given crown-pinion ratio. With Ø20 mm, a very common standard reference is obtained in 1/32 slot racing with NSR, simplifying the calculation of gear ratios based on tables or tuning applications commonly used in the hobby.

NSR Special RTR Black rear tyres 19x13 mm (ref. NSR5294RB) are designed for NSR 16.5/17 mm wheels (codes 5030/5031) and fully compatible with Air System rims. Once fitted, the overall tyre-rim diameter is Ø20 mm, a standard measurement in 1/32 slot car racing. These tyres offer a reliable all-round compound suitable for plastic and wooden slot car tracks, making them a go-to choice for club racing and RTR setups with NSR slot cars.