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ProTaper SMX 04 Tire Set Built for Real Motocross Grip

The ProTaper SMX 04 Tire Set is designed for riders who want dependable traction, stable cornering, and predictable control on dirt tracks and off-road terrain. The combination of the ProTaper SMX 04 Front Tire 80/100-21M/C and ProTaper SMX 04 Rear Tire 110/90-19M/C gives motocross bikes the balance needed for fast starts, strong braking, and confident turns.When riders push hard into a corner or accelerate out of a berm, tire performance matters. This tire set focuses on consistent grip and durability so riders can stay focused on the track, not the tires.

Product Specifications

ProTaper SMX 04 Front Tire – 80/100-21M/C

  • Position: Front
  • Tire Size: 80/100-21 M/C
  • Construction: Bias-ply motocross tire
  • Wheel Compatibility: 21-inch front wheel
  • Terrain Type: Soft to intermediate dirt
  • SKU: ptr023315

ProTaper SMX 04 Rear Tire – 110/90-19M/C

  • Position: Rear
  • Tire Size: 110/90-19 M/C
  • Construction: Bias-ply motocross tire
  • Wheel Compatibility: 19-inch rear wheel
  • Terrain Type: Soft to intermediate dirt
  • SKU: ptr023317
These sizes are widely used on full-size motocross motorcycles and many off-road competition bikes.

Product Features & Benefits

  • Aggressive motocross tread pattern for improved traction on dirt tracks
  • Optimized knob layout for strong cornering grip
  • Deep tread blocks for better acceleration and drive
  • Bias-ply construction for durability and stability
  • Designed for soft to intermediate terrain conditions
  • Balanced front and rear tire design for predictable handling
  • 80/100-21 front tire size for precise steering control
  • 110/90-19 rear tire size for strong rear traction
  • Strong sidewall construction for improved impact resistance
  • Reliable grip for braking, cornering, and acceleration
  • Designed for consistent performance during motocross riding
  • Suitable for full-size motocross and off-road motorcycles

Fitment Clarity

The ProTaper SMX 04 Tire Set fits motorcycles that use:
  • Front tire: 80/100-21
  • Rear tire: 110/90-19
These sizes are common on many full-size motocross bikes such as 250cc and 450cc off-road race machines. Always confirm your motorcycle’s recommended tire size before installing new tires.

Installation Insight

The process of installing motocross tires becomes easy when you have the right tools at your disposal. The tire will properly seat on the rim when you use tire irons along with correct bead lubrication techniques. Experienced riders who have been through this process before choose to install fresh tubes during their tire replacement work because they want to avoid sudden breakdowns.The installation process requires you to perform precise tire pressure checks before you can begin your break-in period which will prepare the vehicle for its first drive.

Who This Tire Set Is For

The ProTaper SMX 04 Tire Set works best for riders who need dependable performance in real dirt riding conditions.This tire set is a strong choice for riders who:
  • ride motocross tracks regularly
  • Practice on soft or intermediate terrain
Weekend riders and amateur racers often choose this tire setup because it offers predictable grip without requiring constant adjustments.

Frequently Asked Questions

1. What bikes use the ProTaper SMX 04 Tire Set?
Motorcycles that use 80/100-21 front tires and 110/90-19 rear tires, common on full-size motocross bikes.
2. Are these tires made for street riding?
No. These tires are designed mainly for motocross and off-road riding.
3. Do these tires require inner tubes?
Yes. Most motocross wheels using these sizes require inner tubes.
4. What terrain works best for SMX 04 tires?
They perform well on soft and intermediate dirt conditions, common on motocross tracks.
5. Can beginners use these tires?
Yes. The balanced traction makes them suitable for both new riders and experienced racers.
6. Should both tires be replaced together?
Many riders replace the front and rear together to keep traction and handling balanced. The ProTaper SMX 04 Tire Set (80/100-21 Front and 110/90-19 Rear) provides motocross riders with the necessary grip and handling abilities which enable them to perform authentic off-road maneuvers. The tire design which matches dirt track patterns and standard competition bike dimensions, allows riders to maintain their self-assurance while they exceed their performance boundaries.

3 reviews for ProTaper SMX 04 Front Tire – 80/100-21M/C

  1. Marcus Armstrong

    Great front tire for enduro and MX. Hooks up well in loam and the center knobs track great in ruts.

  2. Laney

    Good all-around dirt tire for the front. Predictable feel and decent wear for a knobbier pattern.

  3. Jeff Albert

    Fits true to size and mounted without issues. Rode all season on this with no problems will buy again.

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