I was talking to a friend at the tire store and the 700 15 is 30.125 inches tall the 235 works ok and so does the 30. the biggest problem with them is turning in a parking lot. My 65 is my main vehicle. I have no problems finding new 700 15 in highway or traction. just had to ask the tire store. Then wait for them to come in from the warehouse. I have gotten both in the past year from Les Schwab and the tire factory.