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Having a good set of tires can make or break your ride. There are a few factors to take into consideration before ordering new dirt bike tires. Firstly, the terrain. Much like ATV/UTV tires, dirt bike tires are constructed to handle different types of riding. The terrains of dirt bike tires are:
Tires can be in any of these terrains specifically, or in a range, i.e. soft-intermediate. It’s important to pick the terrain of tire that corresponds with where you are riding. If you’re riding somewhere rocky or with lots of sharp, potential trail hazards, a hard terrain tire should be the go-to. Comprised of softer, more flexible rubber, this tire will flex around the debris on the trail and decrease your chances of popping a tire. On the flip side, any loose, soft, relatively-hazard-free terrain should be navigated with a softer terrain tire. The harder rubber gives bite and traction to keep your bike from slipping. As for riding in sand or the dunes, sand paddles are going to be the best option.
Another factor worth considering is the type of dirt bike tire—radial, or bias. The difference between the two comes down to the placement of ply cords. Radial tires are constructed with ply cords extending from bead-to-bead at a 90° angle. This makes them stiffer, but provides longer tread life. Bias tires are created with ply cords extending diagonally from bead to bead at 30-60° angles. This gives the tires better flexibility, which makes them more comfortable on those rocky or rough terrains, but also less durable than their radial counterparts.
When it comes to the size of your new dirt bike tires, it’s best to stick as close to stock as possible. There isn’t much room for height and width changes on a dirt bike, and committing to a drastic change could mean rubbing and damaging of other components. So check your owner’s manual, the sidewall of your tire, before investing in some new rubber.
If you’ve taken the time to decide what type of tire you need, or just want to browse to see what’s available, don’t worry. We stock top brands like:
With a large stock of brands and sizes in all terrains and constructions, look no further than our selection here at Rocky Mountain ATV/MC.

Jairus in NY
No washing out on this thing! Excellent grip, and easy to mount!
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Michael in UT
For a 450 or 500 four stroke, this is my all around favorite tire! Overall, I feel like IRC makes the best off road tires period.
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Scotty in OR
I absolutely like this tire and the find where I ride in the mud and clay it performs well.
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Jeremy in CA
AWESOME TIRE. THESE TIRES WORK AMAZING ON THE MOTO. SUPER STRONG TIRE. COMPLETELY HAPPY THEY HAVE UNREAL TRACTION WITH MY TUBLISS SYSTEM RUNNING LOW PRESSURE
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Tim in TN
I've ran a lot of different tires on different dualsport bikes through the years and thought I would give the mt21 on the rear this time on my crf250l. Already mounted an mt16 on the front. I do like Pirelli tires as I run run them on my vintage mx bikes. Great looking tire and rides good on day 3 after installation. I'm happy with it. Was like wrestling an alligator to mount with my heavy duty tape though, ha.
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Samuel in NJ
This is my second pair of the D606 tires this year. The last set had over 3,000 miles on them before I needed to change them. Most of the riding is on soft sand and packed gravel. 70/30 between offroad/street.
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