Pro Comp LT315/70R17 Tire, Xtreme MT2 - 77315

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  • Pro Comp Tires | Part Number: PCT77315
  • Fitment:Universal Fit
  • Style:Xtreme M/T 2
  • Tire Height:34
  • Section Width:315
  • Availability:In Stock
  • Most Popular Sizes:315x70R17
  • Tire Width:12
  • Tread Type:Mud Terrain
  • Rim Diameter:17 Inches
  • Tire Size:LT315/70R17



The Pro Comp Xtreme MT2 radial is designed for full-size trucks and see a combination of on and off road use. No matter if its hauling heavy loads or exploring rugged terrain, the new Xtreme MT2 delivers the toughness and traction needed to get the job done. The aggressive open tread design was optimized using computer modeling to deliver unsurpassed grip and control without excessive noise. It also delivers improved self-cleaning performance in mud and snow. Pro Comp Xtreme MT2 Tires come with 40,000 Mile Tread Wear Warranty.

Customer Reviews

4.5 4.5
25 Customer ratings

Customer Images

5.0 Great tire

I love these tires.

from Phoenix |
5.0 Great Tires!!!!

Tried to order different tires at first, they were on backorder so talking to 4WD they referred me to these and I am glad they did. Just went through a jeep test track with different obstacles for topless day and they performed amazingly! Great traction from mud to rocks to wood. Don't think about it anymore, just order them. Alittle noise on hwy but what M/Ts aren't??

5.0 very happy with my purchase

Excellent tires. Great traction in the mud and quiet on the street.

from Washougal Wa |
5.0 Solid tires.

Soft and quiet ride for a mud terrain tire. My last set lasted around 50k and 4 years in the desert.

from Las Vegas NV |
5.0 Great tire!

I run these on 2 jeeps. One of which is a fairly heavy 2013 JK Unlimited Rubicon with hardtop, winch, steel bumpers, rear carrier, filled 10 gal fuel caddy, tools, toys, etc. It currently has 58k on a set of the 315x70x17's. With 4:10's and the 6 speed I have had no problem running down the highway at 85-90. Tracks well in the rain. Off road has been really good. Original noise level was almost non existent. At 58k, I'd say we're at end of life and they do sing a little more and rumble here and there. That being said, they're still quite enough where I can easily make hands free calls even with the top off and not be drowned out by the drone. This set is done. I'll be repurchasing in this size or 37's.

from Woodstock, GA |
5.0 Sick with it!

They look sick!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

from CALI |
5.0 Great tires

Never rotated. 79000km. Wear is even on all tires and just now the front is starting to wobble a little at 120 on the highway. Wear on all 4 tires is even. Just buying my next set as we speak

from Chilliwack |
5.0 Happy Customer 2nd set of Pro Comp X MT2’s

After 40k miles on my first set of Pro Comp X MT2 tires I recently purchased my second set of X MT2 tires from 4WP because I have always had a great experience with 4WP and I loved my first set of X MT2’s. They look great, perform well, and last longer than expected.

from Texas |



Question & Answers

15 Answered questions

Q: Will these fit on my stock 2014 GMC Sierra 1500? Thank you. Answer this question

A: Hello Rick, No, this tire will not fit your vehicle unless you install a 2.5" leveling kit. Thank you.

Answered by RK on 09/17/2015

Q: Will this tire fit a 17x9 wheel. Answer this question

A: Thanks for the inquiry Chris, the Pro Comp Tires 315/70R17, Xtreme MT2 part # PCT77315 a 17X9 will fit just fine the recommended wheel size for that tire is 8-10 inches wide.

Answered by RK on 05/14/2015

Q: Can this tire be mounted on stock ford duelly rims? I think they are 6.5 inches wide. I already have 2 inch spacers between the rears to handle the bubble. I am running 305-65-17's now with no issues Answer this question

A: Hello Jay, We suggest against installing this tire on a 6.5" wide wheel. We recommend a 8" to 10" wide wheel with this tire. Thank you.

Answered by RK on 05/14/2015

Q: Will these fit a 2008 Chevy Silverado Z71 with a 3" suspension lift? Answer this question

A: Hello Matt, Yes, the Pro Comp Tires 315/70R17, Xtreme MT2 will fit with some trimming. Thank you.

Answered by RK on 04/17/2015

Q: when specs are listed for tires i'm confused about width, is a 12.50 wider than 70,how wide is 60 65? is 12.50 widest? thanks Answer this question

A: Bubby, the Pro Comp Tires 315/70R17, Xtreme MT2 is a metric sized tire. The measurements you're using is a flotation size. The 315 is the width of the tire in millimeters. The 70 is the aspect ratio which determines the height of the sidewall as a percentage of the width ( 70% of the 315mm). This tire comes out to a 34.4x12.4x17. Hope this helps!

Answered by Anonymous on 04/01/2015


Whether you're going for a tire that gives your rig a more aggressive stance or for a tire that will safely take your rig through mud or snow, Pro Comp Tires has a tire for you. Pro Comp Tires has an engineering department with years off-road tire experience. Pro Comp creates tires that give drivers the best blend of off-road performance with efficient on-road use. Pro Comp offers an industry leading 60,000 mile warranty on select tires. Off-roaders can by sets of select Pro Comp tires with peace of mind because Ride Assurance allows for the return of the set of tires within 60 days if the purchaser is in any way unsatisfied. Shop Pro Comp Tires Now


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