Motocross Tires Buying Guide: Six Models for Dirt, Sand, and Hardpack

On a freshly watered track, the difference between a good tire and a tired one shows up in the first berm. A rear tire that hooks up lets you stand on the gas out of the corner, while a worn knob pattern spins and drifts wide. Because motocross conditions change from loamy soil to rock-hard clay in a single weekend, tire choice is one of the most effective upgrades a rider can make, often more so than suspension tweaks.

The six tires below are listed by brand and model name, with descriptions that stay within what each name states. Terrain ratings, sizes, and compounds differ by listing, so confirm them against your wheel diameter and bike. As of 2026, the standard approach is still to pick a tire by soil type, and then match the front and rear as a pair rather than treating them as separate purchases.

Quick Picks

How to Choose

Match the tire to the soil type

Soft terrain tires have tall, widely spaced knobs that dig into loam and sand. Intermediate tires have mid-height knobs for mixed conditions, and hard-pack tires have shorter, closer knobs that provide a larger contact patch on firm ground. A rule of thumb is to choose by the track you ride most often rather than the occasional outlier. If you ride a variety, an intermediate tire is a safe compromise.

Get the size right for your wheels

Full-size motocross bikes typically use a 21-inch front and 19-inch rear wheel, while many mini and 85cc bikes use smaller sizes such as 17 and 14 inches. Common rear widths include 100/90, 110/90, and 120/80. Always check the numbers on your current tire and match the rim diameter exactly. Going wider than the rim and swingarm allow can cause rubbing, so measure clearance if you are changing width.

Consider compound and sidewall stiffness

Softer compounds give more grip but wear quicker, especially on abrasive tracks. Stiffer sidewalls hold shape at higher speeds and in ruts, while softer sidewalls conform to the ground and absorb impacts. Heavier riders and faster pace often benefit from a stiffer carcass. Lighter riders can often get away with a more flexible tire and may feel better traction at lower speeds.

Plan pressure, tubes, and age

Most riders run roughly 12 to 15 psi in motocross tires, with lower pressure for soft terrain and a higher number on rocky tracks to avoid pinch flats. Use heavy-duty tubes, and consider mousse inserts only if you accept the added cost and setup. Check the date code on the sidewall and avoid tires that sat on a shelf for several years, since rubber hardens with age and reduces traction.

Our Picks Reviewed

Treat the entries below as a starting list rather than a final answer, because track conditions drive tire choice more than brand loyalty does. Ask riders at your local track what they run and how long it lasts, then compare their answers with the terrain notes in each name. Several of the tires below name a terrain category directly, while others only give a model code, so read the manufacturer description before buying. When you mount a new tire, check that the rotation arrow points in the direction of wheel travel, seat the bead evenly, and set the pressure only after the tire has settled for a few minutes. A careful mount helps a good tire perform the way it was designed to.

Dunlop Geomax MX33

The MX33 sits in the Geomax MX line, a name many riders know from racing paddocks. The model code points to a specific design, though the name alone does not tell you the terrain rating.

• Pro: A named MX model within a well-known line makes comparing generations and sizes easier.
• Pro: Dunlop is a long-standing motocross tire maker, so fitment information is easy to find.
• Con: Choosing by model code alone risks buying the wrong terrain type, so read the terrain description.

Skip it if you ride a variety of track conditions and want a tire clearly labeled for hard-pack or sand, and always verify wheel size and width before ordering.

Dunlop Geomax MX53

The MX53 is another model number in the same Geomax line, which makes it a useful comparison against the MX33. The name gives no terrain label, so the product description matters.

• Pro: Staying within a single line lets you compare two designs from the same brand.
• Pro: A numbered model suggests a defined design with documented size coverage.
• Con: Similar names across the line make it easy to order the wrong model, so match the exact code.

Skip it if you do not know your local soil type and cannot ask other riders at your track, since the right terrain match matters more than the model name.

Michelin StarCross 5 Medium

The name includes Medium, which marks it as a mid-range terrain option in the StarCross 5 family. That makes it a reasonable shortlist item for riders on mixed ground.

• Pro: A medium label signals a balanced design suited to tracks that change through the day.
• Pro: Naming the terrain in the product title reduces the chance of buying the wrong type.
• Con: A middle-of-the-road tire may not match a dedicated soft or hard-pack design on extreme tracks.

Skip it if your track is sand-heavy or concrete-hard, where a specialist terrain tire is a better match. Confirm the front and rear sizes, since the title lists neither.

Pirelli Scorpion MX32 Mid Soft

The Mid Soft label tells you the intended terrain sits between intermediate and soft. It suits riders whose tracks are often watered and loose rather than packed.

• Pro: Terrain information in the name speeds up the decision between soft, medium, and hard options.
• Pro: A Mid Soft design suits typical loam and softer clay tracks.
• Con: Softer terrain tires may wear faster on hard or abrasive tracks.

Skip it if you mainly ride hard-pack or rocky terrain, or if you prioritize tire life on dry, abrasive surfaces. Check that the listed size is a front or a rear before buying.

Bridgestone Battlecross X20

The Battlecross X20 carries a brand and a model code with no terrain label, so the listing should be your guide. It is worth considering for riders who want to try a different manufacturer.

• Pro: Another manufacturer gives riders a way to compare feel and wear against more common names.
• Pro: A named model with a code is easy to look up in sizing charts.
• Con: The name alone does not tell you whether it targets soft, intermediate, or hard terrain.

Skip it if you want to buy purely from the name without reading terrain information, and skip it if your local shop cannot mount it or does not stock the size you need.

Maxxis Maxxcross MX-ST

The MX-ST code is commonly read as a soft-terrain design, and the Maxxcross name marks the motocross family. Confirm the terrain description on the listing.

• Pro: A soft-terrain focus suits loam and sand, where tall knobs dig in for traction.
• Pro: Maxxis offers a wide size range across its motocross line, which helps with different bike types.
• Con: A soft-terrain design may feel vague and wear quickly on hard ground.

Skip it if your track is mostly dry and firm, or if you rely on one set for trail riding as well as racing. Also skip it if you want a combination pairing from the same brand in a different category, since that is covered in the Maxxis tire combo guide.

Which One Fits

• Loam and sand tracks: Maxxis Maxxcross MX-ST or Pirelli Scorpion MX32 Mid Soft.
• Mixed-condition tracks: Michelin StarCross 5 Medium.
• Riders comparing designs from one brand: Dunlop Geomax MX33 and Dunlop Geomax MX53.
• Riders open to trying a new maker: Bridgestone Battlecross X20.

Street riders who want a small motorcycle for errands can browse the best motor scooter brand roundup instead.

Mounting and break-in deserve a short note. Fresh tires have a slick film from the mold, so ride the first few laps gently and build speed gradually. Use a quality bead lubricant and tire irons that will not pinch the tube, and tighten the rim lock evenly if your wheel has one. After the first ride, recheck the pressure because it often drops slightly as the tire seats. Keeping a log of which tire worked on which track will make the next purchase much easier.

Common Mistakes

1. Buying a soft-terrain tire for a hard-pack track, then wearing it down in a few rides.
2. Mismatching front and rear tires from different terrain categories.
3. Running street-level pressure and getting pinch flats on rocky sections.
4. Ignoring the date code and mounting old rubber that has hardened.
5. Skipping rim locks or tire changes with a bad technique that damages the bead.

FAQ

How often should I replace motocross tires?

Replace when the knobs round off or tear. Aggressive riders may change tires every few rides, while casual riders can get a full season.

Do I need a heavy-duty tube?

Many riders use heavy-duty tubes for added puncture resistance. Check your bike manual and consider track conditions.

Can I use motocross tires on the street?

Motocross tires are for off-road use and are not legal or safe on pavement. Choose a dual-sport or street-legal tire for roads.

Is a front or rear tire more important?

Both matter. The rear provides drive, and the front handles steering and cornering. Replace them as a matched set when possible.

What pressure should I run?

A common range is 12 to 15 psi, adjusted for terrain and rider weight. Use a quality low-pressure gauge.