Name: Dimax R8
Brand: Radar
Rating: 4.4 (361 reviews)

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# UHP tires
Ultra-high-performance (UHP) tires are commonly used on sports, super, and performance oriented cars. Ideal for use in warmer weather, UHP tires allow for sporty handling, quicker braking and accelerating, and responsive steering to help drivers see how powerful their vehicle truly is. 

Typically featuring a <a title="What are Tire Speed Ratings?" href="/learn/tire-buying-guides/tire-speed-rating">speed rating</a> of V or greater, UHP tires often have a wide footprint and low profile, and are used on powerful vehicles such like <a title="Shop for Corvette Tires" href="/vehicles/chevrolet-tires/corvette">Corvettes</a>,  <a title="Shop for Mustang Tires" href="/vehicles/ford-tires/mustang">Mustangs</a>,  <a title="Shop for Camaro Tires" href="/vehicles/chevrolet-tires/camaro">Camaros</a>, and so on. UHP tires should not be used or stored in below freezing temperatures. 

A variety of tire manufacturers make UHP tires including <a title="Shop for Yokohama UHP Tires" href="/brands/yokohama-tires/categories/uhp">Yokohama</a>, <a title="Shop for Bridgestone UHP Tires" href="/brands/bridgestone-tires/categories/uhp">Bridgestone</a>, <a title="Shop for Continental UHP Tires" href="/brands/continental-tires/categories/uhp">Continental</a> and <a title="Shop for Pirelli UHP Tires" href="/brands/pirelli-tires/categories/uhp">Pirelli</a>. 

If you're looking for a set of UHP tires online then you've come to the right place, as SimpleTire has thousands of ultra-high-performance tires that meet your driving needs and budget.

[UHP tire reviews](https://simpletire.com/categories/uhp-tires/reviews) 

Closeup of an Ultra High Performance Tire on a Porsche

UHP tires

primary

This tire has a good warranty, which means that it's expected to last for 
                            a somewhat long time based on the tire type. Regular tire maintenance, such as rotation and 
                            alignment, and safe driving habits are key to ensuring this tire hits its stated mileage warranty.

Good Mileage Warranty

Dimax R8

Promotion valid Oct 01, 2024 - Sep 30, 2025

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Best Rated UHP Tires

Ecsta V720 ACR

LG27

Ultra High Performance (or UHP) tires have a speed rating of V or greater and are used on sports cars, super cars, and other powerful vehicles. Commonly featuring a wide footprint and low profile, UHP tires provide excellent traction and steering response but should not be used when temperatures are at 40 degrees or below.

Vehicle

This product is covered by a 35,000 mile manufacturer’s treadlife warranty. Merchandise covered by a manufacturer’s warranty is sold with the warranty by the 
        manufacturer extended to the purchaser. We will be happy to assist in obtaining fulfillment of a manufacturer’s 
        warranty. Other than applicable manufacturers’ warranties, there are no warranties, express or implied, 
        including any warranty of merchantability or fitness for a particular purpose. The only tires SimpleTire can 
        warranty are brand new defects (meaning that they have not been mounted or driven on). Any bead damaged will be 
        void of any warranty claim. Any other adjustments should be taken to the nearest authorized dealer for that 
        manufacturer. Sometimes the manufacturer also provides a treadlife warranty and mileage rating. Please be aware 
        that not all tires hold a mileage warranty from the manufacturer. Different tire models, even from the same 
        manufacturer, may or may not come with a treadlife warranty.

Mileage Warranty

The maximum carrying capacity for a tire determined by the manufacturer.

Load Index

Maximum speed capability to safely carry a load for an extended period of time.

Max Speed

The maximum load carrying strength at the specified inflation pressure, also known as ply rating.

Load Range

The side of the tire between the tread and rim, with cosmetic branding as well as information about the tire including manufacturer, model, size, etc.

Sidewall

Standards that measure treadwear, temperature resistance and traction, example: "640 A A".  The 640 is the treadwear test and it lasted 6.4 times longer than the comparison tire tested against.  The first "A" is the traction rating using straight-line wet traction on test surfaces (see information tables tab) and the second "A" is the temperature rating by testing operation at high speeds without heat-related failure (see information tables tab).

UTQG

Wet Traction is a piece of the UTQG for example if  UTQG is: 500 AA A, the wet traction piece is the second piece, the "AA".

Wet Traction

Measured in 32nds of an inch, this metric shows how much tread life is left on a tire, with the tire's traction & stopping capabilities greatly diminished at 4/32nds and less. Tire manufacturers include "tire wear bars" at 2/32nds to indicate when your tire is worn out.

Tread Depth

An identifier of a particular tire line and size combination assigned by the tire manufacturer.

Part Number

Tread design (or tread pattern) can affect handling, traction & noise for different driving styles & road conditions.

Tread Design

Tire Weight

Low rolling resistance tires are designed to reduce the energy loss as a tire rolls, decreasing the required rolling effort, improving vehicle fuel efficiency.

Low Rolling Resistance

The Radar Dimax R8 tires appear to be a budget-friendly option that offers satisfactory performance for many users. They seem to perform well in various weather conditions and provide good value for money. However, experiences vary, with some customers reporting issues with grip, noise, and durability. These tires may be better suited for everyday driving rather than high-performance applications.

The Radar Dimax R8 tires receive mixed reviews, with many customers praising their performance and value, while others report issues with quality and handling.

Dimax R8 Reviews

361 reviews