So as far as driveability on the road there is not a great deal of difference with my new tire choice. That’s a lot. June 14, 2013 @ 9:24 am There is a great deal of difference out on the autocross course however! For the past several months I have been pondering the purchase of new tires for my Triumph TR6. To be honest I would love to buy some new Michelin X Redlines, run tubes, and continue to enjoy the classic ride. Bottom line: Michelins are roughly $220 per corner. This page is intended to provide some information, both statistical, and anecdotal, to help guide you in deciding what tires are right for you and your car. Though lowering the tire pressures has helped somewhat, the new tires will never be as ‘cushy’ as the old ones, but this is a compromise I can learn to live with because of how I wish to use the car. The car had been sitting in a garage since 1980 and although the tires had a lot of tread remaining, they had to be replaced. Another important consideration is how the car will be used. While this shouldn’t be a big deal, there were several considerations I had to bear in mind before making a decision. Others: The 80 series tires are pretty much passe’ if you’re into driving. In addition, new 185R15s can cost upwards of $200.00 per tire— if you can find them! The 205/70 tire has an overall diameter of 26.3” so in comparison to the 185R15s the tire diameter is virtually unchanged from the original’s 26.6”. Having said that, I understand the safety concerns of the old tires and am looking to replace them. Being so tall and narrow these tires offer little as a performance tire. It should not be used for membership questions. Redline Radial Tires | Coker Classic Redline Tires Coker Classic Redline tires are perfect for muscle cars as well as some import applications. size. They look very good on the TR6 and provide a smooth, compliant ride. 185R15 Coker Classic Redline Tires are perfect for European sports cars, including 1969 through 1976 Triumph TR6. The Michelins requires tubes, I don’t know about the others. I am pretty good at reading the manual, and both the manual and the placard inside the glove box call for 20 psi front and 24 psi rear. A popular replacement for the 185R15 is a 205/70R15 size tire. The Michelin redlines are popular here in the 'states for nostalgic reasons, and today are one of the few remaining tyres in the original U.S. TR6 spec. Thus, there are some equivalent tires available from any of the tire manufacturers. If you have wires or Mags, you might have different choices. Redlines: There are apparently three sources for red-lines. That’s a lot. I have tried a range higher pressures over the years and find that the ride deteriorates dramatically and that the cars ‘grip’ becomes unbalanced over these factory specs. The trade-off for the improved performance has been a harsher ride. Chattanooga, TN 37402, GR-13/15 Radial Tube | TR13 Offset Rubber Stem, 1962 - 1971 Jaguar E-Type Tire / Wheel Package. The ones I had were used, theyworked for a season, but I would not recommend used tires. I run about 22 Front / 26 rear and have found this to be the best combination of ride and match to the suspension for handling. This means that speedometer and odometer readings should not change, an important consideration. And if I have a tire problem almost anywhere in the US, I can get one new tire from the any local Michelin dealer. Originally all US-bound TR6s came equipped with 185R15 size tires (Redline Michelins or Goodyears). They are also very close in circumference to the original tire so speedometer is still very accurate. Some of the advice I picked up may be of interest to anyone else looking for replacement tires for their British sports car. Bottom line: Michelins are roughly $220 per corner. Like 205/70R15s, they are almost equal on overall diameter to the original tires, but as I started to use the 6 as a weekend cruiser and occasional autocrosser, cornering performance became more and more of a consideration. You can still get Dunlop SP "H" rated, and Michelin 180-15 XAS (which are closer to the redline than other 185s) and I don't know about Pirellis.