Toyo Proxes Sport R Tire - 295/30ZR18 98W XL

Toyo's Extreme-Performance Summer Tire Engineered for the Track and the Street

The TOY178290 Toyo Proxes Sport R in 295/30ZR18 98W XL is Toyo's latest extreme-performance summer tire built for autocross, time attack, endurance racing, and HPDE enthusiasts who demand race-capable grip with a tire that meets competitive class tread depth minimums. The Proxes Sport R features a directional tread pattern with large shoulder blocks and a continuous center rib, reinforced internal casing for high-speed stability under sustained cornering loads, and a high-grip compound that delivers consistent dry traction across sessions. With a UTQG rating of 200 AA A and a 7/32 in. tread depth that satisfies most organized motorsport class requirements, the TOY178290 is built to perform from the moment it leaves the paddock.

Key Features

• UTQG 200 AA A rating, meeting competitive racing class tread depth specifications of 7/32 in.
• Aggressive directional tread pattern with large shoulder blocks and connected center rib for maximum dry grip and stability
• Reinforced internal casing construction supports sustained high-speed cornering loads and resists flex during hard braking
• High-grip compound tuned for autocross, time attack, endurance racing, and HPDE applications
• XL (Extra Load) rating: load index 98, speed rating W (up to 168 mph), suitable for high-performance and heavier sport vehicles
• Extreme-performance summer tire, not intended for use in near-freezing temperatures, snow, or ice

Specifications

What's Included

• 1x Toyo Proxes Sport R tire, 295/30ZR18 98W XL (TOY178290)

About Toyo Tires

Toyo Tire Corporation has been engineering performance tires since 1945, with manufacturing operations and research facilities spanning Japan, the United States, and Europe. The Proxes line represents Toyo's flagship performance tire series, developed through active motorsport participation including Super GT, Formula Drift, and global time attack competition. The Proxes Sport R is Toyo's most aggressive street-legal summer tire, developed specifically in response to demand from autocross and HPDE communities for a tire that competes on-track while remaining street-transferable and DOT-legal.

Frequently Asked Questions

The Toyo Proxes Sport R carries a UTQG rating of 200 AA A. The 200 treadwear number indicates a high-performance, relatively short-wear tire in the performance summer category. The AA traction rating is the highest assigned by the UTQG system, and the A temperature rating indicates superior heat dissipation capability at sustained high speeds.

Yes. The TOY178290 is a DOT-compliant tire suitable for street use. However, as an extreme-performance summer tire, it is not intended for use in temperatures below approximately 45 degrees Fahrenheit, in wet snow, or on ice. Performance will degrade significantly in cold or winter conditions, and summer tires should be removed and stored before cold-weather seasons in northern climates.

Yes. The TOY178290 launches with a 7/32 in. tread depth, which meets the tread depth minimums required for most SCCA Solo, NASA, and regional autocross class regulations. Verify the specific tread depth requirement for your class and sanctioning body before competition, as rules vary by organization and event.

The 295/30ZR18 size is designed for 18-inch diameter wheels. Toyo recommends a rim width range of 10 to 11 inches for this size, with a measured section width of approximately 295mm and an overall diameter determined by the 30 series aspect ratio. Confirm wheel fitment against your vehicle's clearance and offset specifications before purchasing.

No. The Proxes Sport R is a new product positioned differently from the Proxes Sport 2 (which is a street-focused ultra-high performance tire) and the Proxes RR (which is a DOT race-only tire). The Proxes Sport R occupies the segment between these two, targeting drivers who compete at autocross and HPDE events but also drive on the street regularly.

The 295/30ZR18 size is common on high-performance sports cars including the Porsche 911, Ferrari 488, McLaren 570S, and similar track-focused platforms that use 18-inch staggered fitments. It is also a popular aftermarket fitment on performance sedans and coupes running 18-inch wheels with wide-body or flared arch modifications.

The Proxes R888R is a dedicated DOT race tire designed almost exclusively for motorsport, with minimal street tread and very aggressive compound characteristics that make it unsuitable for regular street driving. The Proxes Sport R has a more developed tread pattern, a 200 treadwear rating, and a high-grip compound designed to work across both street and track environments, making it a more versatile choice for drivers who do not want to mount dedicated race tires for each event.

Tires are sold individually (priced per tire). For vehicles using staggered fitments such as 295/30ZR18 at the rear and a narrower size at the front, you may only need two rear tires. For square setups where all four positions use 295/30ZR18, four tires are required. For balanced handling and safety, always replace tires in axle pairs at minimum, and in sets of four when possible.

Installation Instructions

1. Verify that your wheel diameter (18 in.), rim width (10 to 11 in. recommended), and bolt pattern match your vehicle before mounting.
2. Have the Toyo Proxes Sport R tires mounted by a professional tire shop with balancing equipment capable of handling performance tire fitments.
3. Torque lug nuts to your vehicle manufacturer's specification after installation.
4. Confirm tire pressure matches the manufacturer's recommended cold inflation pressure for your vehicle (check door jamb sticker).
5. After mounting, inspect tires for any damage, sidewall bulging, or mounting irregularities before driving.
6. Perform a low-speed heat cycle on the first use to allow the compound to properly seat and develop grip before pushing to maximum cornering loads.