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Discussion Topic:
Radial tire question
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flatheadfan |
05-17-2012 @ 1:07 PM
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Member
Posts: 450
Joined: Oct 2009
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I have a '51 which needs tires and I have decided to go radial but size is a problem. I am getting some mixed signals. The standard tire is a 6.70-15 a 205/75R15 is "suppose' to be a radial substitution. The problem is the whitewall width. The maximum available is 2 3/4" Which is much smaller than the 3 1/2" bias tires currently on the car which look period correct. If I go with a 215/75R15 I can get a 3" ww which would be a somewhat better compromise than the 205 width. Now for the question! Can I run 215s without creating some fitting problems between the tire and the body in the rear? Thanks for the help. Tom
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tudorbilll |
05-17-2012 @ 3:29 PM
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New Member
Posts: 108
Joined: Oct 2009
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I wold not put a larger tire on I'm running the 205 on my 35 they work great.In a month you wont notice the difference.And you will love they why they handle. Bill
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jaxV8carz |
05-18-2012 @ 5:10 AM
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Member
Posts: 19
Joined: Oct 2009
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Diamond Back will make whatever width whitewall you prefer on whatever tire size. I have 215-75-15 on my 51 with stnd 3 rib skirts. No problem. I'm also running 205's on another 51. Going forward, I'd be happy with 205's.
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shogun1940 |
05-18-2012 @ 6:30 PM
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Member
Posts: 464
Joined: Feb 2010
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6.70/15 should measure 28.5" in diameter. 215/75/15 should be27.5" in dia.8.5" wide///235 are9" wide and 29"diam. Iwould go on a tire web sit to get there exact measurements
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wmsteed |
05-26-2012 @ 8:27 AM
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Senior
Posts: 613
Joined: Oct 2009
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When changing tire size and construction type, radial vs bias, you must keep in mind your rim size vs the tire manufactures suggested rim size.. I have used P205/75R tires on my '57 Bird since '73 with no problems..Most tire manufactures recommend a 6./7. inch wheel for the P205 tire. Coker's tire booklet shows all of the wheel recommendations for any given size of tires.. Wheels earlier than '56-57 can be very narrow, less than 6", which will pinch the tire bead in and result in a tire that does not properly contact the road. I try to live by the rule to 'not let the directions on the can out smart me'...
Bill 36 5 win delx cpe
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JT Ford |
05-26-2012 @ 2:16 PM
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New Member
Posts: 112
Joined: Oct 2009
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I just installed a set of Diamond Backs on my '49 Ford Convertible. 205.75x15, 2-3/4 in WWW. I would have liked the 2.10's but DB wouldn't guarantee that the rear fender wouldn't hit going around corners. I have skirts on it and my finger was about all the space I had with 7.10's on the rear. I know these shoeboxes came from the factory with 3 - 1/2 in WWW's but they look out of place now. In fact by l952 they were not made any longer. They are MUCH better tires than my old Coker bius belted tires!
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