[DeTomaso] Anyone have offset numbers for 8 inch front and 10inch rear wheels?

Tomas Gunnarsson guson at home.se
Thu Aug 20 15:32:25 EDT 2015


Backspacing is measured on the outsides of the rim, the advertised rim width however is inside the bead where the tire sits. The difference is typically about 1". So an 8" rim is 9" on the outside and that's where you measure BS.

Tomas 
  ----- Original Message ----- 
  From: Ken Green 
  To: Mike Drew 
  Cc: detomaso at poca.com ; Tomas Gunnarsson 
  Sent: Thursday, August 20, 2015 8:54 PM
  Subject: Re: [DeTomaso] Anyone have offset numbers for 8 inch front and 10inch rear wheels?


  I first thought that, but the math doesn't work.


  Offset = backspacing - width/2


  So for the wheels on ebay (my only interest in these wheels is understanding the correct offset for a Panera):


  front wheel offset = 5.25 - 8/2 = 1.25 inches = 31.75mm?  Not 19mm.


  Did I make a mistake here?


  Maybe they measured the backspacing from the outside of the rim and the width as the tire mounting surfaces.  If the difference is 1/2 inch thickness, the numbers could work out, but could result in a 1/2 inch fitment error if we are not careful.


  Ken



    

------------------------------------------------------------------------------
  From: Mike Drew via DeTomaso <detomaso at poca.com>
  To: Ken Green <kenn_green at yahoo.com> 
  Cc: "detomaso at poca.com" <detomaso at poca.com>; Tomas Gunnarsson <guson at home.se> 
  Sent: Thursday, August 20, 2015 10:53 AM
  Subject: Re: [DeTomaso] Anyone have offset numbers for 8 inch front and 10 inch rear wheels?


  Ken,

  ET 19 means 19mm offset....

  Mike

  Sent from my iPhone

  On Aug 20, 2015, at 13:01, Ken Green via DeTomaso <detomaso at poca.com> wrote:

  >  Thanks Tomas,
  >      There are a set of Coddington "Pantera wheels" on ebay right now:
  >  [1]http://www.ebay.com/itm/Boyd-Coddington-Super-10-Spoke-Wheel-for-DeT
  >  omaso-Pantera-staggered-17x8-11-/181840688325
  >  with this description:
  >  "For sale is a set of four authentic Bill Coddington designed Super 10
  >  Spoke wheels. The front wheels measure 17x8 (et 19, or a 5.25"
  >  backspacing) and the rears measure 17x11 (et 12, or a 6.5" backspacing)
  >  and have a 5x114.3 (or 5x4.5) bolt pattern."
  >  If I have this right, the front wheels are 46mm inward versus your 19mm
  >  (about an inch difference).  That seems substantial, and could cause
  >  clearance issues?  What do you think?  I'm not sure what the "et 19" in
  >  the description means.
  >  Ken,
  >    __________________________________________________________________
  > 
  >  From: Tomas Gunnarsson <guson at home.se>
  >  To: kenn_green at yahoo.com
  >  Cc: detomaso at poca.com
  >  Sent: Wednesday, August 19, 2015 11:50 PM
  >  Subject: Re: [DeTomaso] Anyone have offset numbers for 8 inch front and
  >  10 inch rear wheels?
  >  Ken,
  > 
  >  19 mm inwards on the front wheels, 5 mm outwards on the rears is what I
  >  have noted.
  > 
  >  Tomas
  >  <-----Ursprungligt Meddelande----->
  >      From: Ken Green via DeTomaso [detomaso at poca.com]
  >  Sent: 20/8/2015 6:21:15 AM
  >  To: detomaso at poca.com
  >  Subject: [DeTomaso] Anyone have offset numbers for 8 inch front and 10
  >  inch rear wheels?
  >  Been looking at aftermarket wheels, and need the offset (not the
  >  backspacing) to see if anything fits.  I know backspacing numbers have
  >  been posted and I think offset is backspacing - width/2, but people
  >  seem to measure the backspacing differently.
  >  Thanks,
  >  Ken
  > 
  > References
  > 
  >  1. http://www.ebay.com/itm/Boyd-Coddington-Super-10-Spoke-Wheel-for-DeTomaso-Pantera-staggered-17x8-11-/181840688325
  > _______________________________________________
  > 
  > Detomaso Forum Managed by POCA
  > Posted emails must not exceed 1.5 Megabytes
  > DeTomaso mailing list
  > DeTomaso at poca.com
  > http://poca.com/mailman/listinfo/detomaso_poca.com
  > 
  > To manage your subscription (change email address, unsubscribe, etc.) use the links above.

  _______________________________________________

  Detomaso Forum Managed by POCA
  Posted emails must not exceed 1.5 Megabytes
  DeTomaso mailing list
  DeTomaso at poca.com
  http://poca.com/mailman/listinfo/detomaso_poca.com

  To manage your subscription (change email address, unsubscribe, etc.) use the links above.







-------------- next part --------------
   i>>?

   Backspacing is measured on the outsides of the rim, the advertised rim
   width however is inside the bead where the tire sits. The difference is
   typically about 1". So an 8" rim is 9" on the outside and that's where
   you measure BS.



   Tomas

   ----- Original Message -----

   From: [1]Ken Green

   To: [2]Mike Drew

   Cc: [3]detomaso at poca.com ; [4]Tomas Gunnarsson

   Sent: Thursday, August 20, 2015 8:54 PM

   Subject: Re: [DeTomaso] Anyone have offset numbers for 8 inch front and
   10inch rear wheels?

   I first thought that, but the math doesn't work.
   Offset = backspacing - width/2
   So for the wheels on ebay (my only interest in these wheels is
   understanding the correct offset for a Panera):
   front wheel offset = 5.25 - 8/2 = 1.25 inches = 31.75mm?  Not 19mm.
   Did I make a mistake here?
   Maybe they measured the backspacing from the outside of the rim and the
   width as the tire mounting surfaces.  If the difference is 1/2 inch
   thickness, the numbers could work out, but could result in a 1/2 inch
   fitment error if we are not careful.
   Ken
     __________________________________________________________________

   From: Mike Drew via DeTomaso <detomaso at poca.com>
   To: Ken Green <kenn_green at yahoo.com>
   Cc: "detomaso at poca.com" <detomaso at poca.com>; Tomas Gunnarsson
   <guson at home.se>
   Sent: Thursday, August 20, 2015 10:53 AM
   Subject: Re: [DeTomaso] Anyone have offset numbers for 8 inch front and
   10 inch rear wheels?
   Ken,
   ET 19 means 19mm offset....
   Mike
   Sent from my iPhone
   On Aug 20, 2015, at 13:01, Ken Green via DeTomaso
   <[5]detomaso at poca.com> wrote:
   >  Thanks Tomas,
   >      There are a set of Coddington "Pantera wheels" on ebay right
   now:
   >
   [1][6]http://www.ebay.com/itm/Boyd-Coddington-Super-10-Spoke-Wheel-for-
   DeT
   >  omaso-Pantera-staggered-17x8-11-/181840688325
   >  with this description:
   >  "For sale is a set of four authentic Bill Coddington designed Super
   10
   >  Spoke wheels. The front wheels measure 17x8 (et 19, or a 5.25"
   >  backspacing) and the rears measure 17x11 (et 12, or a 6.5"
   backspacing)
   >  and have a 5x114.3 (or 5x4.5) bolt pattern."
   >  If I have this right, the front wheels are 46mm inward versus your
   19mm
   >  (about an inch difference).  That seems substantial, and could cause
   >  clearance issues?  What do you think?  I'm not sure what the "et 19"
   in
   >  the description means.
   >  Ken,
   >    __________________________________________________________________
   >
   >  From: Tomas Gunnarsson <[7]guson at home.se>
   >  To: [8]kenn_green at yahoo.com
   >  Cc: [9]detomaso at poca.com
   >  Sent: Wednesday, August 19, 2015 11:50 PM
   >  Subject: Re: [DeTomaso] Anyone have offset numbers for 8 inch front
   and
   >  10 inch rear wheels?
   >  Ken,
   >
   >  19 mm inwards on the front wheels, 5 mm outwards on the rears is
   what I
   >  have noted.
   >
   >  Tomas
   >  <-----Ursprungligt Meddelande----->
   >      From: Ken Green via DeTomaso [[10]detomaso at poca.com]
   >  Sent: 20/8/2015 6:21:15 AM
   >  To: [11]detomaso at poca.com
   >  Subject: [DeTomaso] Anyone have offset numbers for 8 inch front and
   10
   >  inch rear wheels?
   >  Been looking at aftermarket wheels, and need the offset (not the
   >  backspacing) to see if anything fits.  I know backspacing numbers
   have
   >  been posted and I think offset is backspacing - width/2, but people
   >  seem to measure the backspacing differently.
   >  Thanks,
   >  Ken
   >
   > References
   >
   >  1.
   [12]http://www.ebay.com/itm/Boyd-Coddington-Super-10-Spoke-Wheel-for-De
   Tomaso-Pantera-staggered-17x8-11-/181840688325
   > _______________________________________________
   >
   > Detomaso Forum Managed by POCA
   > Posted emails must not exceed 1.5 Megabytes
   > DeTomaso mailing list
   > [13]DeTomaso at poca.com
   > [14]http://poca.com/mailman/listinfo/detomaso_poca.com
   >
   > To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   _______________________________________________
   Detomaso Forum Managed by POCA
   Posted emails must not exceed 1.5 Megabytes
   DeTomaso mailing list
   [15]DeTomaso at poca.com
   [16]http://poca.com/mailman/listinfo/detomaso_poca.com
   To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.

References

   1. mailto:kenn_green at yahoo.com
   2. mailto:MikeLDrew at aol.com
   3. mailto:detomaso at poca.com
   4. mailto:guson at home.se
   5. mailto:detomaso at poca.com
   6. http://www.ebay.com/itm/Boyd-Coddington-Super-10-Spoke-Wheel-for-DeT
   7. mailto:guson at home.se
   8. mailto:kenn_green at yahoo.com
   9. mailto:detomaso at poca.com
  10. mailto:detomaso at poca.com
  11. mailto:detomaso at poca.com
  12. http://www.ebay.com/itm/Boyd-Coddington-Super-10-Spoke-Wheel-for-DeTomaso-Pantera-staggered-17x8-11-/181840688325
  13. mailto:DeTomaso at poca.com
  14. http://poca.com/mailman/listinfo/detomaso_poca.com
  15. mailto:DeTomaso at poca.com
  16. http://poca.com/mailman/listinfo/detomaso_poca.com


More information about the DeTomaso mailing list