[Fot] Tires

[Mark Craig - Diesel Performance Parts]

Hey I can’t figure out how to post on FOT it has been a long time and I got a bunch of Sptifire and GT6 bonnets and other stuff I want to sell to the membership versus facebook or eBay etc., Can you tell me how?


[cid:image001.png at 01DBEF55.0B543C10]<https://www.dieselperformanceparts.com/>

Mark Craig
Diesel Performance Parts, Inc.
411 Allied Drive, Nashville, TN 37211
https://www.dieselperformanceparts.com/
[cid:image002.png at 01DBEF55.0B543C10]<https://www.facebook.com/dieselperformancepartsinc>


Phone: 615-834-0066
Fax: 615-834-9923
Email: mark at dieselperformanceparts.com<mailto:mark at dieselperformanceparts.com>



From: Fot <fot-bounces at autox.team.net> On Behalf Of Mark Haynes via Fot
Sent: Monday, July 7, 2025 2:26 PM
To: fot at autox.team.net
Subject: [Fot] Tires

While not specifically a triumph question, I hope I get get some info here.
I have a ‘73 Lotus Europa John Player Special. The car only weighs about 1500 pounds.

The tires that came on the car are:

175/70-R13 Front
185/70-R13 Rear

Because of the weight, the specified air pressure is only 20 pounds.

The rims are 5.5” wide

It is difficult to find street legal performance tires for 13” wheels.

Some manufacturers sell the 175’s & some sell the 185’s but few sell both, & those that do, may only sell both using different model tires. I hate to mix 2 different tire models on the same car.

If I go with a 205/60-R13, I get basically the same diameter/circumference as both the 175 & 185 tires, & there are a number of track performance tires, & even the old BF Goodrich Radial T/As available. The 205’s would look great!

From some old on line posts, it sounds like the 205/60’s will work fine on the rear, with some very slight interference on the front at full turn lock. That would be easy to deal with.

Some charts I have seen say that a 5.5” wide rim will take up to a 205, but some say only up to 195 widths are acceptable.

Your thoughts?
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