PDA

View Full Version : ST215 vs p215


sp00ky
07-21-2012, 04:37 PM
Just got back from a week's vacation at lake Sinclair in GA. We had 2 blowouts on the way there one where the rim was trashed on the highway and the other on a secondary road. Hats off to the help from the small town Sheriff who had a guy out with a new tire within an hour since we used the spare on the previous blowout.

I ordered a trailer tire and rim from eastern marine and now have one ST215 75 R14 and one p205 75 R14 is this an issue? Also it seems like the new galvanized rim was hotter than the SS one. Any thoughts?

Thanks

madcityskier
07-22-2012, 12:35 AM
My understanding is that p is for a passenger car and lt is for a light truck, which involves extra layers on the sidewall for a stronger tire with greater stability. Not sure about St, surely someone will come by to clarify and explain what part of the information I have gleaned over the years is faulty.

sp00ky
07-22-2012, 12:52 AM
81839

sp00ky
07-22-2012, 12:53 AM
This was a fun day wheel trashed In about 30 seconds

CCAnderson
07-23-2012, 09:42 AM
you want to make sure you match the tire size exactly and use trailer tires.

XX - AAA-BB-R- CC

A = tread width in millimeters
B = the aspect ratio or side wall height in terms of % of tread width
R = Radial
C = rim diameter in Inches

XX = tire type

P (Passenger car)
LT (Light truck
ST (Special Trailer)
T (Temporary like a donut spare)


Wikipedia has a decent summary as well if you don't trust me
http://en.wikipedia.org/wiki/Tire_code

Miss Rita
07-23-2012, 02:58 PM
I ordered a trailer tire and rim from eastern marine and now have one ST215 75 R14 and one p205 75 R14 is this an issue?

Yes, it is an issue. The P-metric tire is not adequate for a trailer, especially if you have a single axle. Best to get another proper ST tire, use the other for a spare.