Just browsing for some tires and I came across this. The paragraph reads that they are "Q" rated speed and the description reads that they are "SR".
Does the "SR" just stand for speed rated maybe? Or is it a misprint?

The Q-speed rated BFGoodrich All-Terrain T/A KO features white letter sidewall styling and is available in popular LT-metric and Flotation light truck sizes for 14”, 15”, 16”, 16.5" and 17” wheel diameters.

BFGoodrich All-Terrain T/A KO (Off Road All-Terrain)
Size: 265/75SR16 Raised White Letters
SR Speed Rated Price: $149
Estimated Availability: In Stock


http://www.tirerack.com/tires/tires....omCompare1=yes

 

"Q" would be the actual Speed Rating designation:

http://www.4crawler.com/Diesel/Tires.shtml#SpeedRating

And you can double check the tire specs on the BFG web site:

http://www.bfgoodrichtires.com/asset...rain_ta_kd.pdf

 

Thank you.

 

M 81 mph 130 km/h
N 87 mph 140 km/h Temporary Spare Tires
P 93 mph 150 km/h
Q 99 mph 160 km/h Studless & Studdable Winter Tires
R 106 mph 170 km/h H.D. Light Truck Tires
S 112 mph 180 km/h Family Sedans & Vans
T 118 mph 190 km/h Family Sedans & Vans
U 124 mph 200 km/h
H 130 mph 210 km/h Sport Sedans & Coupes
V 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars

and the have higher ratings but you won't be needing those...

 

I was out yesterday and inspected my tires, and I saw what I would call a gash or valley in the tire. The tire it at 32 PSI for the winter and all the other tires are fine except one. They are the stock DunSchlops BTW. On the outside close to the edge there is a valley around most of the tire. I'd say it is about 1" in from the outer edge. It almost looks like it was shaved or better yet like if you put something on a grinding wheel and left it in one spot for a while. Does this make sense to anyone? I would get pics, but no digicam. I looked on the net for unusual tire wear and can't seem to locate anything.

 

One of my friends said that my tires were for "Passenger Vehicles" because of the P on the side. I laughed and never said a thing. The same one that said you have to hook the supercharger up to the throttle body instead of a pulley/belt system.

 

hey steve!

short hijack! just wanted to say hi, my dad is from glace bay, no. 2 to be exact. been a long time since ive been to sydney, looking to go back maybe this summer.

lee

 

http://cgi.ebay.com/ebaymotors/ws/eB...category=66474

Land Terrain look like the A/T KO's

 

http://cgi.ebay.com/ebaymotors/ws/eB...category=66474

$350 Half the price of the BFG's w/o S+H tho.

 

If your tires have a P on them like P235/75R15 then he is correct.

The P stands for Passenger and they are not as strong as a Light Truck tire as in LT235... On my F150, I can eat up a set of P265/70R17 tires in 25,000 miles, they need 45psi in front and 30 in back to come even close to wearing properly and must be rotated twice of often. The LTs I replaced them with are now at 47k and still look good.

Ps have a thinner sidewall and less load capability than LTs, generally fewer plys, they ride smoother but aren't really great for trucks.