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WIDER TIRES for my original 13" -68 dart 270 rims?
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Author:  suurthing [ Wed Nov 12, 2014 7:52 pm ]
Post subject:  WIDER TIRES for my original 13" -68 dart 270 rims?
i love my nice original hub caps for my 68 dart-HOWEVER-the tires are so narrow -and totally look ridiculous!
id simply like to get some wider tires-and use these wheel covers-and cruise around for a summer-before i go for the 14" ralley wheels.
BASICALLY-WHAT ARE MY TIRE OPTIONS WITH THESE VINTGAGE 13" RIMS?
Author:  wjajr [ Thu Nov 13, 2014 5:40 am ]
Post subject: 
Options; not a lot if any.

Look here for mass-market tire availability, and here for antique reproduction product.
Author:  FrankRaso [ Thu Nov 13, 2014 6:09 am ]
Post subject: 
The OEM 13" rim is only 4½" wide, which limits the maximum size of tire to P185/80R13. This tire size is now obsolete with most tire manufacturers except for Maxxis. They still offer this size at a reasonable price and shipping is included.

Maxxis P185/80R13 90S RWW MA-1
Author:  phogroian [ Sun Nov 16, 2014 11:58 am ]
Post subject: 
I bought a set of MAXXIS (Cheng Shin) tires for a '64 Valiant. The existing P185/80R13 tires were no longer in production, and the only thing I found online in this size at places like Tire Rack were trailer-specific tires. Be careful when buying online that the tire is not a trailer tire. The MAXXIS tires have a nice whitewall, and though I wish that they were in the $60 range instead of $100 (!) each, they seem to be the best option at this point if you are staying with the OEM 13" rims.
Author:  63Valiant [ Sat Nov 22, 2014 7:42 am ]
Post subject: 
I run 205/60/13 on the stock rims. Fit and look fine.
Author:  FrankRaso [ Sat Nov 22, 2014 11:34 am ]
Post subject: 
The Maxxis page above specifies 5.0" as the rim width for the P185/80R13 tire. The Yokohama Rim/Wheel Width page specifies the following approved rim widths for their tires:
  • P205/60R13: ... 5.5" - 7.5"
  • P185/80R13: ... 5.0" - 6.5"
The OEM 13" rim is only 4.5" wide which is even a bit too narrow for the P185/80R13 tire.

I believe that the problems with using too narrow a rim are:
  • adverse effect on the tire's load capacity
  • adverse effect on handling due to sidewall rollover
Author:  Hapster [ Wed Apr 22, 2015 8:24 pm ]
Post subject: 
I used to sell tires for Montgomery Ward back in the late 70's and I bought some 13 inch tires for my 510 datsun that had cantilever sidewall that would look great. I haven't looked to see if they still exist any more but I doubt it.
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