Dunlop Geomax MX31 Rear Tire

Dunlop Geomax MX31 Rear Tire
Dunlop Geomax MX31 Rear Tire

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  • Description
  • 13 Reviews
  • 4 Questions
Description Item #

Please note: Tire sizes vary by ride, please check your current tire and wheel sizes before placing the order. If you have any questions, please call Customer Service at 1-888-676-8853.

The Geomax MX31 carries a wealth of innovative features that allow the tire to dig down deep for extra traction in sand and mud, resulting in tenacious grip across a wide range of soft-terrain conditions.

  • The Geomax MX31 features Dunlop's patented, tapered, "chiseled" shoulder-block shape. A taper in the block creates a smaller point on top that allows the knob to penetrate through the ground's soft surface layer and grab the firmer ground beneath to gain traction instead of floating on the surface.
  • Limited block surface creates a more open pattern for enhanced penetration in soft dirt / sand to contact harder ground for enhanced traction.
  • Chiseled shoulder-block shape helps improve side traction and makes traversing ruts easier.
  • Geomax Reinforced Pattern (GRP) design connects and reinforces the tread blocks for greater tread stiffness, while recessed design in the area between tread blocks helps give the tire superb compliance and ride comfort.
  • Knobs are placed in a unique linked shoulder-block design for better traction and grip in soft-to-intermediate riding conditions.

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13 Reviews
4.0 out of 5 stars
5 Star   8 4 Star   3 3 Star   0 2 Star   0 1 Star   4
Verified Purchaser
Arlington, TN
Durability   Ease of Installation   Performance   Style  
Best tire on the market!!

This tire is great! It hooks up well in the corners.

Belpre, Ohio
Durability   Ease of Installation   Performance   Style  
Good tire

i have run this tire on my Rm 250 in the winter and early spring and i counldnt be more pleased. i love this tire. it hooks up exceptionally well in the mud and soft dirt and i will continue to run this tire when i am on a softer terrain course. very pleased with this product. buy this tire to keep you ripping through the soft stuff while watching the competition get stuck in it

San Diego CA
Great product

Bought the tire about a month ago and installed it. Installation went well. I have only rode the home a couple of times so fare. Tire has good grip on hard and soft ground. I think is is going to be a great tire.

Kokomo, In

Tire came fast, Hooks up well. My son has them on his KTM. they work well and look nasty!!!!


Tire is a waste of money.The side knobbys started ripping off after 5 hours of practice in soft terrain.This was on a stock 2010 crf250r.

Great rear tire

The MX31 rear is great for the little bikes. Cleans well in the mud and hooks up great.

Perfect Florida tire

I've run both the mx51 and mx31 front and rear tires.

I only liked the 51's on super hard pack tracks. Anything soft or loose the front would get nervous.

I believe the 31's are better intermediate tires than the 51's, especially the front. They do well in everything intermediate to soft and the front tire gives you a ton of confidence in corners. I'm on my second rear and the wear seems pretty standard for a tire.

Forney ,Texas
Durability   Ease of Installation   Performance   Style  
Dunlop geomax

recently purchased dunlop geomax rear tire my son prefers this tire it has a great tread pattern and he says he likes it because he can dig deep in the corners.

Millville, NJ
Durability   Ease of Installation   Performance   Style  
Maybe defect?

cant beat the price, but the rear MX 31 side Knobbies started peeling off after first ride. I think this could be a factory defect. I know people who had good luck with this tire.Picture coming soon.

Durability   Ease of Installation   Performance   Style  
Sick Tires

the front was easy the rear took two people, the 80 might be why recommend the shop put it on.

Suffolk, VA
Durability   Ease of Installation   Performance   Style  
Best Mud Tire

Great mud tire that helped me move to the top of points in my class of off road racing. Perfect tire for wet spring races.

I love the mud
Pasadena, Maryland
Durability   Ease of Installation   Performance   Style  
Tire chunks

only lasts a couple rides.

Pasadena, Maryland
Durability   Ease of Installation   Performance   Style  
Shorter life than a 756

In just three short rides the knobbys started chunking off. This tire was made to outlast the old 756 but it will not. I had to replace the tire after practice. This tire was not raceable it was missing 8 knobbies. Buy a quality tire, that will last.

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4 Questions
Answered:   4
Not Yet:   0
Q: How well will this tire perform on both hard surfaces and soft surfaces? Because I ride in all different places.?
2 years 2 months ago
MotoSport Staff Expert Top 10 Contributor Top 1 Contributor
2 years 2 months ago
A: The Dunlop Geomax MX31 is their soft terrain tire more suited for sand and soft terrain. If you are going to be riding a wider variety of terrain, I would recommend going with the Dunlop Geomax MX52 or the Dunlop Geomax MX71.
Location: New Cumberland, WV, USA
Q: I need a good tire?
Over 3 years ago
A nice tire that will climb well A good mud and shale tire
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: This tire would be a good choice for your Honda CRF50. Anything compared to the stock tire for what you are describing is going to be a a better tire. Luckily between all the aftermarket brands, there is not much of a noticeable performance difference between them.
Location: Keller, TX
Q: Will the 110/80-19 fit on a crf250r stock rim? (Normal size is a 100/90-19)?
Over 7 years ago
MotoSport Staff Expert
Over 7 years ago Location: Portland, OR
A: It will fit, but the way the tire tracks will be different.
Top 1000 Contributor
Location: New York
Q: Is this better for soft terrain (sand, mud, soft dirt) than the d952?
Over 7 years ago
i need a tire cuz the track i go to is sand and soft dirt mixed, but when it rains its mud. which tire is better for this? the mx31 or the d952? thanks
MotoSport Staff
Over 7 years ago Location: P+RTLAND
A: Personally I would run with the MX31, it's geared a little bit more towards softer riding conditions.
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