Hi can anyone tell me what pressure to put in a beaded edge (clincher) 30x 3 tire. I have a '14 tourer with 30x31/2 tires on back. I run them at 55 psi. The 30x3 's are on the front.
I run 60 to 65 all the way around on our '14 touring with the same tire configuration.
For clinchers, too little (below 55 psi) might cause a tire and tube to slip, shear the air valve or cause rim-cuts in the tire itself. -Too much pressure might cause bubbles in older tires with cracked rubber. -My tires are fairly fresh, so I go with 60 psi up front and 65 at the rear. -If your tires are dry and cracked, maybe compromise and go with 55 up front and 60 at the rear. -Would a difference of 5 psi really count for anything? -Nah. -Just make sure none of your tires get below 55.
The early treatises suggest that 20 pounds per inch of tire is correct for clinchers. So 60 pounds for 30X3 and 70 for 30X3-1/2.
I have allways thought that the 30x3's were 65 and the 30x3 1/2 should be 60?? Not the first time i have been wrong so maybe i need a Canadain car!! Bud.
Curious how many run 70 lbs in their 30x3.5 clinchers? I've been running 65, but maybe I need 70.
I think 70 is the ideal but I doubt you will get in too much trouble running at 60. The early Dykes specify 70 for 30X3-1/2 clinchers as do several of the other early reference books. With the last batch of tires I got the sidewalls developed cracks after less than a year. I returned them and now I reduce the tire pressure to 50 pounds when the car is not in use and/or being stored. I also raise the cars with winter tire jacks when they are not going to be used for a while. It is a pain in the butt however, with the cost of tires these days, I think it is worth the effort. So far it seems to be working
I run 60 psi in my 30 x 3.5s, no issues so far. I only have 2000 miles on my current Universal T Drivers, so it may be too soon to read the tread wear.