I am looking to run 35 inch Micky Thompson mtz on my jeep. I see there is the 315/70R17 then there is the 35x12.50R17. What's the difference between the sizes and which should I order. They be mounted on the Micky Thompson ClassicIII wheels. My jeep Is a 2dr 08 x with a 3.5 rock Krawler lift and flat fenders. Thanks everyone

 

those are the same tires i plan on running as well. the 315 70r17 are slightly smaller then the 35x12.50x17. im gonna run the 35s on rockmonsters with the aev 2.5 lift with the geo brackets.

 

I have the Mickey Thompson MTZ. They have good grip on various terrain types and on dry & wet road.

They are the same size.
315/70R17 is in the metric system, the 35x12.50R17 is in inches.

315 (Tread width in millimeters) / 70 (% of tread width = side wall height) R 17 (Rim diameter in inches)

35 (Tire diameter in inches) x 12.50 (Tread width in inches) R 17 (Rim diameter in inches)

The numbers given by tire manufacturers are nominal, not the accurate size. The actual tire diameter is a bit smaller than the numbers suggest.

 

X2. MTZs are a superb choice. A great all-weather all-conditions mud tire that even gives decent grip on winter ice roads.

The 315/70/17 do measure small, mine were 33.75" tall when mounted. They're very long-wearing, I got 45-50,000 miles out of a set -- they were noisy by the end 😃

 

You probably meant that the MTZ are all terrain, not mud tires.

 

Nope...the Baja MTZ is Mickey Thompson's mud terrain. The ATZ is the all-terrain. Had two sets of those on previous Xterras and they were great! But for mud terrains....I'd honestly go with a set of Nitto Terra Grapplers over the Mickeys. I've put nearly 40k on my 37x12.50-17 Terra Grapplers and still have some tread left....maybe another 10k miles tops. But they're usually less expensive than Mickey Thompsons in my experience.

 

You say potato, and I say potato ; you say tomato and I say tomato... To me, they're mud tires that are siped to also run well in rain and wet roads.

 

See my post above yours.....

 

Well, it seems they changed their description of the MTZ.
When I bought them, Mickey Thompson regarded the MTZ as -- "40% Road & Sand, 60% Dirt & Mud".
Just looking at the tread shows an aggressive all terrain and not a true mud tire, and, what really counts is that they behave like good AT, not like good MT:



The ATZ were described as -- "60% Road & Sand, 40% Dirt & Mud".

True mud tires have larger lugs and wider grooves.