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After the staggared RFT were spent on the E90 long ago, I swapped to GFT (go-flat tires). Knowing the RFT were stiffer sidewalls, I went to a square 18" set up and ran GFT high performance all- season. 245/35-18 XL rated.
One late Christmas Eve, out in West BF Nowhere, where I live, I ran over a block of 2x4. Yep, there was a nail in it. The FTM popped up. Being it was near midnight, very cold, the wife shithammered sitting in the back with the pups, I decided to trek the last 30 miles home rather than try and plug the tire.
Next day, I check the pressure, flat as a pancake. Threw the E90 up on the lift to see how bad the leak was. The tire went flat in about 2 minutes, so I drove home on a GFT 30 miles with zero pressure in it. My conclusion from that experience is large diameter, low-profile GFT with XL load rating, are as good as more expensive RFT. Granted it was below 30 degrees, but the tire stayed completely intact.
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