can somebody confirm with me on measuring offset?

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Jbpka06
    E30 Addict
    • Feb 2006
    • 551
    #1

    can somebody confirm with me on measuring offset?

    My wheels do not have the offset stamped on them so here's what i got:

    16x9
    10" total width
    6" backspacing

    therefore

    offset= 1" = 25mm?

    I am about to order adapters so I wanted to make sure they would fit.
    Tags: None
    • MisterMiniS
      Grease Monkey
      • Oct 2010
      • 397
      #2
      I'm no expert at all, but I think you are a little off. Because it is a 16x9, so you use the 9" as the width. Measuring from lip to lip is not accurate. So, 9" total with 6" backspacing (is that still correct then?) give 1.5" which is 38.1 mm.
      Look at this

      Someone please correct this if I am wrong!


      1989 325i Alpine White
      69 STX

        Comment

        • Jbpka06
          E30 Addict
          • Feb 2006
          • 551
          #3
          well looking at that picture it shows that the centerline of the wheel is the direct center regardless of measurement from bead to bead, or lip to lip. It is difficult to get a correct backspace measurement when going from the bead seat, so going from the outermost lip should give you the same numbers. Thats my thinking at least, any other input would be appreciated

            Comment

            • DTM190
              E30 Enthusiast
              • Nov 2008
              • 1107
              #4
              Originally posted by Jbpka06
              10" total width
              6" backspacing

              therefore

              offset= 1" = 25mm
              Centre line doesnt change. If you measured bead to bead to work out centre line it will still be in the same place, just easier measuring from the lip.

              So i agree with what you posted above. 5" from either lip is the centre line, if back spacing from the lip is 6" then et must be 25mm.
              Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.


              Originally posted by der affe
              first try a finger or 2, you need to have them suck on it first and get it nice and wet to help it slip in.

              if she goes for that, astroglide up your pole, have her lay on her stomach and slip it in slowly and bury it to your balls and leave it there until she relaxes. once she is used to it slam that ass like a screen door.

                Comment

                • Jbpka06
                  E30 Addict
                  • Feb 2006
                  • 551
                  #5
                  alright thats what I thought. Man the guy I bought these wheels from is lucky because the wheels are stamped 16x9 et49.....which is what I thought I was buying..

                  luckily I now can use smaller adapters and have a bigger lip!

                    Comment

                    • Farbin Kaiber
                      Lil' Puppet
                      • Jul 2007
                      • 29502
                      #6
                      Wait, they are stamped, and you are doubting the spec? Are they rebuilt three piece wheels, or one piece?

                        Comment

                        • DTM190
                          E30 Enthusiast
                          • Nov 2008
                          • 1107
                          #7
                          Originally posted by Jbpka06
                          My wheels do not have the offset stamped on them

                          Originally posted by Jbpka06
                          because the wheels are stamped 16x9 et49
                          Confused
                          Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.


                          Originally posted by der affe
                          first try a finger or 2, you need to have them suck on it first and get it nice and wet to help it slip in.

                          if she goes for that, astroglide up your pole, have her lay on her stomach and slip it in slowly and bury it to your balls and leave it there until she relaxes. once she is used to it slam that ass like a screen door.

                            Comment

                            • Jbpka06
                              E30 Addict
                              • Feb 2006
                              • 551
                              #8
                              oops i forgot i wrote that in the first post....i wrote that so there was no confusion as to why I was asking the offset haha.

                              The wheels are three piece so they must have been mismatched sometime in their lives.
                              The centers are stamped 1991 manufacture date and the barrels and lips are stamped 1989

                                Comment

                                • Ant_e30
                                  Wrencher
                                  • Mar 2011
                                  • 292
                                  #9
                                  You got it right, in reference to the first comment you are meant to use overall width not the captive bead area to calculate

                                    Comment

                                    Previous template Next
                                    Working...