(also a subjective 'look' of the car and 'fit' to wheelwell)Ģ. We measured BOTH the OD and the height of the center of the rim to ground when mounted ON THE CAR. 185-15 redline (5) & G800(2) with a bunch of various modern tires(8) I loaded up the truck with wheel&tires and went to his farm. (they most certainly do not measure as a 75 series) (I have a complete set of 1975 redlines as mounted from the factory.)Ī buddy and I got into this question 20 years ago. Tires pre-date the current Metric markings. If you want the address of the other TR6 site just send me a PM.ĭifficult to believe this is still a question.Īnswer 185-15 = 205/70-15 (on stock t5' wide wheel)įind it interesting that 185/75-15 was mentioned, 75?, thought the dam things were 82 profile, but no matter. There are Yokohama's, Pirelli's, Continentals, Bridgestones and more to consider. If the manufacturer you favor does not make a 20570/15 then look elsewhere. These were new replacements, not original Michelin X's. I am running Yokohama AVID TRZ's and find then very good so far - a big improvement over the stock, tubed Michelin X reproduction redline radials that were on the car when I got it. I understand that going up to 215's may cause problems with both those issues (speedo and rubbing). Consequently, there does not appear to be any significant speedo error or rubbing in the wheel wells even with the aftermarket tube shock conversion kits and this size gives you a wider stance/bigger tread. These guys have tried it all and believe that this size most closely replicates the overall dimensions of the original 185-75/15's which came with the cars. On advice from another, exclusive TR6 forum I am running 205-70/15's.

Welcome and here's what little I know about tires and TR6's.

Dec 15 Spitfire Rear Fender Damage Fixed.

Apr 06 FLCentral Florida All British C.

Michelin redline tires for tr6