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<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV>Try this</DIV>
<DIV>Charly Mitchel </DIV>
<DIV>TR6 #44</DIV>
<DIV><FONT size=2 face=Arial><A
href="https://www.turbinecar.com/tires.htm">https://www.turbinecar.com/tires.htm</A></FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=fot@autox.team.net href="mailto:fot@autox.team.net">dustin nicholson
via Fot</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=fot@autox.team.net
href="mailto:fot@autox.team.net">fot@autox.team.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, June 27, 2019 2:29
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Fot] Curious Tire size
conversion</DIV>
<DIV><BR></DIV>To determine the size of the old tire in modern designation
format measure the tread width in millimeters, I’m guessing 5.5 inches times
25.4 = 140, that’s your first number.
<DIV><BR></DIV>
<DIV>I’m guessing 9.20 is the dimension in inches of the top side wall + The
bottom side wall. When added to the 15 inch wheel diameter it would give you a
tire diameter of 24.20 inches. This is just a guess of what they mean by
9.20.</DIV>
<DIV><BR></DIV>
<DIV>Next, Measure the side wall height in millimeters, I’m guessing 9.20
inches/2 x 25.4 = 117mm. Divide 117 sidewall height by the 140 tread width
gives you a height to width ratio of 1.20 which is your second number... but
they don’t show the decimal so it reads as 120.</DIV>
<DIV><BR></DIV>
<DIV>So the old 5.50-9.20-15 = a new 140-120-15 (if my guess of what 9.20
means is correct, if not, just measure the sidewall as my 120 number would be
wrong).</DIV>
<DIV><BR></DIV>
<DIV>It appears that the old tire is 1.7 inches narrower than your new
185-65-15 and there is only 1/10 of an inch difference in the tire
height.</DIV>
<DIV><BR></DIV>
<DIV>Dustin<BR><BR>
<DIV dir=ltr id=AppleMailSignature>Sent from my iPhone</DIV>
<DIV dir=ltr><BR>On Jun 27, 2019, at 1:19 PM, Redmond via Fot <<A
href="mailto:fot@autox.team.net">fot@autox.team.net</A>>
wrote:<BR><BR></DIV>
<BLOCKQUOTE type="cite">
<DIV dir=ltr>
<P style="FONT-FAMILY: Helvetica">I should've been a little bit more clear
than mud. <BR></P>
<P style="FONT-FAMILY: Helvetica">I'm just curious as to what the size tire
he was running back in the 1960's. Can anyone translate the 5.50-9.20-15
into today's sizing.<BR></P>
<P style="FONT-FAMILY: Helvetica">FYI - I'm going with the 185-65-15<BR></P>
<P style="FONT-FAMILY: Helvetica">Todd<BR></P>
<P style="FONT-FAMILY: Helvetica"><BR></P>
<P style="FONT-FAMILY: Helvetica"><BR></P>
<BLOCKQUOTE type="cite">On June 27, 2019 at 11:08 AM Redmond via Fot
<<A href="mailto:fot@autox.team.net">fot@autox.team.net</A>> wrote:
<BR><BR>
<P style="FONT-FAMILY: Helvetica">Friends,<BR></P>
<P style="FONT-FAMILY: Helvetica"><BR></P>
<P style="FONT-FAMILY: Helvetica">Curious question:<BR></P>
<P style="FONT-FAMILY: Helvetica">I have 1 Goodyear Blue Streak tire from
when my dad raced my TR3.<BR></P>
<P style="FONT-FAMILY: Helvetica">Size says 5.50-9.20-15<BR></P>
<P style="FONT-FAMILY: Helvetica">What size would this be in today's
sizing?<BR></P>
<P style="FONT-FAMILY: Helvetica">Thanks<BR></P>
<P style="FONT-FAMILY: Helvetica">Todd<BR></P></BLOCKQUOTE>
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