Announcement

Collapse
No announcement yet.

Rim and Tire Question

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
  • #1

    Rim and Tire Question

    So I have a set of Toyo RA1 tires for my wets this year! My question is around wheel size?

    I have a 255/40/17 front tire and 235/40/17 rear tire..

    Would I be safe to run both of these on an 8" wheel? I know it wouldn't be ideal!

    Any thoughts?

    Grant
    Tags: None
  • #2
    Re: Rim and Tire Question

    Nominal rim size for the 235 would be 8.5 inches
    Nominal rim size for the 255 would be 9 inches
    Dov Aronoff
    OTA Social Media Rep
    SPDA Ontario Time Attack Rep

    Comment

    • #3
      Re: Rim and Tire Question

      255/40/17 8.5-9.0-10.0 (officially nope)
      235/40/17 8.0-8.5-9.5 (ok)

      http://www.toyotires.ca/tire/pattern/proxes-ra1
      '11 Red STI #373


      Keep right except to pass.

      Comment

      • #4
        Re: Rim and Tire Question

        Yeah, think I will buy a set of 17x8.5 RPF1s can never have too many of those..

        Comment

        • #5
          Re: Rim and Tire Question

          Originally posted by Grant Galloway View Post
          Yeah, think I will buy a set of 17x8.5 RPF1s can never have too many of those..
          Why not RPF1 17x9.5"? You'll generally find that wider is better with most performance tires. 255/40 RA1's feel a little squirmy on an 8.5"... I've done that before.
          sigpic

          Stephen, SPDA VP, OTA Director, CCC Member
          OTA: SGT1 ! -=- CSCS: SSA #842

          Comment

          • #6
            Re: Rim and Tire Question

            Originally posted by Slowpoke View Post
            Why not RPF1 17x9.5"? You'll generally find that wider is better with most performance tires. 255/40 RA1's feel a little squirmy on an 8.5"... I've done that before.
            Thanks Stephen, the problem is it's a Civic... I have 17X9's with 35 offset that requires a 10mm spacer just to clear the strut, this makes for a rather close fit with the poke!

            I have 255/40/17 Trofeos for the front this season

            Trying to avoid further issues with these..

            Comment

            • #7
              Re: Rim and Tire Question

              The overall width of the tire is going to be pretty similar between an 8.5" rim and a 9.5" rim, it'll just have more sidewall bulge on the narrower rim making it feel worse and more squirmy.

              Comment

              • #8
                Re: Rim and Tire Question

                I'd say those are both fine for an 8 inch rim.

                In a pinch I used to run 245/45-16 RA-1s on a 7 inch wheel.
                Andy
                Mobil 1 Time Attack - #96

                Comment

                • #9
                  Re: Rim and Tire Question

                  Originally posted by G-ForceJunkie View Post
                  I'd say those are both fine for an 8 inch rim.

                  In a pinch I used to run 245/45-16 RA-1s on a 7 inch wheel.

                  In a pinch. I see what you did there.
                  Another quality post from Black Dwarf Racing

                  Comment

                  • #10
                    Re: Rim and Tire Question

                    I ended up order 8.5" wheels for this setup...

                    Grant

                    Comment

                    • #11
                      Re: Rim and Tire Question

                      8.5 is still too small for 255. Will be squirmy.
                      Elvis
                      Ice Racing, RallyX and Autox

                      Comment

                      Previous template Next
                      Working...
                      X