Diamondback Triple Whitewall Tires

[atencioee]

1 hour ago, RivNut said:

In 1964, bias ply tires were what you got. On the Riviera, the 7.10 x 15 was the standard tire; the 7.60 x 15 was the optional “oversized” tire.  The 7.10 x 15 tire came on 5.5” rims; the 7.60 x 15  tire came on 6” rims.  In today’s radial tires, the 7.10 x 15 converts to 215/75R15, and the 7.60 x 15 converts to 225/75R15.  Rim width is measured inside the bead of the rim.  Usually about 1/2” is the width of the beads themselves.  
 

in 1965, the tires were 8.45 x 15”.  They were no bigger than the 7.60 x 15, the industry changed the way they measured tires.  There is a complete chart of original tire sizes and their modern equivalents on the ROA’s website.  

That's the reason why I said I'm the odd ball!! I was aware of the 7.10 x 15 (215/75R15) and 7.60 x 15 (225/75R15) coming on 64s. Mine are smaller...I'm rolling on 205/75R15.

[atencioee]

On 2/12/2021 at 1:53 PM, Turbinator said:

Gents, Diamond Back supplied the American Classic Radial bias look in a 7.10 R 15 for my 63. I specified the 1” ww on the tire. I mounted the tires on TruSpoke stainless wires and nipple chrome wheels. I made the center cap assembly.

 

Those tires (and wheels) look really nice!!

[XframeFX]

On 1/20/2024 at 8:53 PM, atencioee said:

Mine are smaller...I'm rolling on 205/75R15.

So, it appears we are all in agreement that 225/75-15 size is closest but slightly larger to the optional 7.60-15 originals.

225/75-15 comes in at 28.4" diameter. I couldn't find that size in WSWs so went for a set 225/70-15s at 27.4" diameter.

A 28.0" diameter tire would've been perfect and that would be a 235/70-15. Good luck finding that one in a WSW. Vitour comes to mind, common everywhere except North America. This size will probably rub slightly Lock-to-Lock.

 

A visual comparison:

 

[gungeey]

Even 215 75 15s slightly rub 

[RivNut]

The 205/70r15 tire is the tire size for the 1986-1993 Riviera.  Which weighs about 600 fewer pounds, or 30%, less than the first generation. Check the weight capacity for each tire and multiply by 4 to make sure the smaller tires are safe for your car.

Edited March 18 by RivNut (see edit history)

[Turbinator]

On 3/17/2024 at 5:44 PM, XframeFX said:

I couldn't find that size in WSWs so went for

John, Iron Man, a Cooper built USA tire, has one inch WSW tires in the size you want. There are trucks going to Canada, even BC, daily with these tires and no problems. No tax, no VAT, each tire comes with a 6 pack of Molson.

Later Gator

 

[XframeFX]

6 hours ago, Turbinator said:

John, Iron Man, a Cooper built USA tire, has one inch WSW tires in the size you want. There are trucks going to Canada, even BC, daily with these tires and no problems.

I recall Canadian snowbirds sending tires via USPS while in Florida to Canada. Loop-hole was to not wrap or package them. Obviously for the "Drivers" at home.

Nowadays, I legitimately play the "Antique Auto" card and only the tax is due. Doesn't always work. If RockAuto.com can do it, why can't some seemingly lazy Vendors do it? T/A Performance did not follow my simple instructions. Was charged every conceivable fee and taxes.

 

As for acquiring WSWs at tire shops and online in Western Canada, there was only one chain store last year: canadacustomautoworks.com. Of course there are some independents across the country and would probably be Suretrac Power Touring product from Asia.

For 2024, there's now a 2nd source. Online "1010tires.com" now has Ironman RB12 and Milestar. I realize shipping, mounting/balancing will push it to a significant total cost. But, coupon "SETOFFOUR2024" will return a package price and reduced shipping.

This could change yet again including available tire sizes but, these are the 3 choices.

 

 

Edited March 21 by XframeFX (see edit history)