Performance Ratings

  • rating  Dry Handling
  • rating  Wet Handling
  • rating  Tread Life
  • rating  Braking
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Race Tire

The design and components come from our experience of winning races all over the world. This DOT competition tire* is well-known by road racers for delivering quick lap times, consistency and long wear.

*Caution: Recommended for competition events only.

Performance Ratings

  • rating  Dry Handling
  • rating  Wet Handling
  • rating  Tread Life
  • rating  Braking
Tread depth indicators
  • Circles in tread indicate tread depth.
  •  Full 8/32nds tread depth provides good competitive wet traction.
  • Shaving to 6/32nds improves dry traction.
Stepped Tread Design
  • Increased tread area and limited void improves dry traction.
  • Groove arrangement assists with wet traction.
Soft But Durable R-Compound

Greatly improves grip for better competitive handling and performance.

Tire Size Load/Speed Product Code Approved Rim Width Range (inch) Overall Diameter (inch) Overall Width (inch) Sidewall Tread Depth (1/32") Revs/km Max Load Single (lbs.) Max Pressure Single (psi)
205/50ZR15 236840 5.5-(0.0)-7.5 23 8.3 BW 8 570 1168 44
225/50ZR15 236830 6.0-(0.0)-8.0 23.7 9.1 BW 8 551 1323 44
225/45ZR15 236970 7.0-(7.5)-8.5 22.9 9 BW 8 564 1201 44
P225/50ZR16 236890 6.0-(7.0)-8.0 24.7 9 BW 8 531 1389 44
P255/50ZR16 236880 7.0-(8.0)-9.0 25.8 10.3 BW 8 507 1687 44
245/45ZR16 236800 7.5-(0.0)-9.0 24.4 9.8 BW 8 534 1477 44
235/40ZR17 236760 8.0-(8.5)-9.5 24.4 9.6 BW 8 529 1323 44
255/40ZR17 236770 8.5-(9.0)-10.0 25.1 10.4 BW 8 515 1477 44
275/40ZR17 236780 9.0-(9.5)-11.0 25.6 11 BW 8 504 1653 44
275/35ZR18 236710 9.0-(9.5)-9.5 25.6 10.9 BW 8 504 1521 44

Toyo Tires warranty program


Proxes RA1

Setup Guidelines

Toyo Tires recommends the following general set up guidelines for the Proxes RA1:

  • Operating Temperature: 71°c to 104°c (160°F to 220°F)
  • Hot Inflation Pressures: High 30s to Low 40s (psi)
  • Camber: -2.5° to -5.0°
  • Caster: As much positive as possible
  • Shaving: 4/32” is recommended for competition  (grooves remain until 2/32”)
  • Rim width: a tire size that falls within the range of midpoint to maximum rim widths is recommended

Proxes RA1 Safety Advisory

  • The tread compound is specifically designed to operate under racing conditions making it difficult to achieve optimum  adhesion levels under normal street driving.
  • The shallower tread depth of 6/32nds limits the tire’s performance capabilities under normal street driving conditions.
  • Performance limitations are particularly evident in low  ambient temperatures or during the spring and fall when ambient temperatures fluctuate significantly.
  • Wet performance is limited when operating outside the optimum temperature range, and when the tire is at less than full tread depth.
  • Do not use the tire if it has cracked.

For recommendations on proper use, handling, and storage of this tire in colder climates please click 

Race-prepared vehicles such as:
BMW e30
Mazda Miata MX-5
Porsche Boxster
Porsche 944
Honda CRX
Honda Civic
Honda S2000

Tread Talk

Toyo Tires Canada
3 days 24 min
Hoonicorn vs the World: World’s Fastest Donk (1,500hp) Vs Ken Block’s 1,400hp AWD Ford Mustang: #kenblock

Tire of the Week

A performance tire ready for Canadian winters!

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