CLASSIC REAR tyres 20x8.5 SUPERGRIP

NSR Classic Rear 20x8.5 Supergrip Tyres: Proven Grip for Competitive Slot Racing

Tyres are one of the preparation points that most influence the actual behaviour of a slot car, and NSR knows this better than anyone. With the reference NSR5234EVO, the Italian brand presents the Classic Rear 20x8.5 Supergrip, a rear tyre designed for classic profile mounts that require a wide contact patch and a high-grip compound.

Features and Function

• Position: rear axle.
• Size: 20 x 8.5 mm — outer diameter 20 mm, width 8.5 mm.
• Compound: Supergrip, the highest grip mixture in the NSR range, formulated to maximise traction on starts and fast corners.
• Profile: Classic, with a rounded section that distributes the load evenly and facilitates mounting on compatible diameter rims.
• EVO Manufacturing: the evolution of the mould ensures a more homogeneous finish, less rotational imbalance, and greater repeatability between units.

Track Performance

The NSR Supergrip compound is designed for rigid plastic surfaces and rubber-coated wooden tracks, the most common in clubs and tournaments. Its grip level is significantly superior to that of standard factory tyres, resulting in cleaner starts, less drift in tight corners, and a more predictable response when releasing the trigger.

The size 20x8.5 fits narrow-medium profile 1/32 scale rear rims, being especially suitable for GT, Sport, and some open-wheel prototype cars. As a rear tyre, its main purpose is to transmit all the motor power to the track without loss of traction.

Mounting and Preparation

To get the most out of the Supergrip compound, we recommend:

1. Check that the rear rim diameter is compatible with the 20 mm outer size.
2. Mount the tyre cold and, if a preparation lathe is available, lightly turn it until achieving the perfect circumference and eliminating any eccentricity.
3. Clean the track with a damp cloth before running, as Supergrip collects dust more easily than hard compounds.
4. Avoid the use of aggressive adhesive liquids: the compound itself offers sufficient grip, and chemicals can prematurely degrade the rubber.

Compatibility

NSR designs its tyres for its own rims and chassis, but the 20x8.5 size is compatible with a wide variety of 1/32 scale mounts that use rims of that diameter. Always check your rim specifications before ordering.

Ideal for…

• Club racers looking to improve rear traction without resorting to complex preparations.
• Competitors in categories with classic profile cars needing a reliable and repeatable tyre.
• Enthusiasts wanting to renew the rear end of their NSR car with the same or higher factory standard.

Frequently Asked Questions

How many units are included in the package?

The package contains the number of units indicated on the original NSR packaging for this reference. We recommend checking it on the datasheet or contacting our team if you have any doubts before placing your order.

Are they compatible with rims from other brands?

They can be mounted on rims from other brands as long as the inner diameter of the tyre and the outer diameter of the rim are compatible. NSR does not certify compatibilities outside its own catalogue, so verify the measurements before mounting.

Is there a real difference between Supergrip and the standard NSR compound?

Yes. Supergrip is NSR's highest grip mixture: softer and stickier, designed to maximise traction on track. The standard compound offers greater durability but less grip in cold conditions. The choice depends on the type of competition and the state of the track.

Do I need to turn the tyres before using them?

It is not strictly necessary, but it is highly recommended in competition. A light turning eliminates small factory eccentricities and ensures that all tyres mount perfectly round, improving the stability and predictability of the car.

Can I use them on Scalextric plastic track?

Yes, the Supergrip compound works on rigid plastic track (compatible with Scalextric, Ninco, and similar) as well as on wood. Its performance is especially good on very smooth surfaces.

NSR Classic Rear 20x8.5 Supergrip tyres (ref. NSR5234EVO) — high-grip rear rubber for 1/32 scale slot cars. Supergrip compound delivers outstanding traction on plastic and wood tracks, ideal for club racing and GT or sport car categories. Perfect replacement or upgrade for NSR chassis builds.