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Re: [Fot] TR4 tire & rim size for Speedsters

To: Tim Murphy <>, ""
Subject: Re: [Fot] TR4 tire & rim size for Speedsters
From: "Kramer, Robert" <>
Date: Tue, 5 May 2009 15:54:34 -0500

You ask a very good question and I'd like to hear the responses. The websites
list the 205 and 185 as the same diameter, with just the tread width
difference. I have no problems at all with clearance but am I giving myself a
little more rolling resistance than I would with the 185's? Would that help me
on long straigths and not hurt me in the turns? I run a TR4A IRS and the
outsides of the tires have an easy life. I do get to flip them if I do it in
time, but I am running on the inside half of the tire most of the time.

Bob Kramer
Sales Manager
RDO Equipment Company
16415 N. IH 35
Pflugerville, TX 78660

-----Original Message-----
From: [] On Behalf
Of Tim Murphy
Sent: Tuesday, May 05, 2009 3:23 PM
Subject: [Fot] TR4 tire & rim size for Speedsters

What size Speedsters are those of you with TR4's and 6 inch rims running?
The 185/60R15's or the 205/60R15's?  We have Revolution 6 inch wheels with
spacers and the car is lowered about 2 inches I'd guess.  We've noticed on
some other TR4's with the wider Speedsters (205/60R15's) that they look like
they hit the outer fender lip on a hard bump when cornering.  Also have
noted on the Hoosier website that the narrower tire (185/60R15's) may have
more grip on a 6 inch rim than the 205's, as the 6 inch rim is the correct
rim for the 185's.  Appreciate any input.

Tim & Ryan Murphy

1961 TR4 #317

P.S.  We got a HANS device from a vendor who came around at Gingerman in
South Haven, MI last weekend.  Got fitted properly in the car and he mounted
the posts right at the track.  Got the latest "quick disconnect" posts and
the sliding tethers at a good price, $695 plus 3% to use a credit card for
the Sport model.  Very pleased.
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