Dunlop Geomax MX34 Front Tire (80/100-21)
MSRP: $139.95
$111.96
Exact Fitment Guarantee
The Dunlop Geomax MX34 Front Tire (size 80/100-21) is a cutting-edge soft-to-intermediate motocross and off-road front tire engineered to replace standard OEM front rubber with exceptional cornering grip, precise line-holding capability, and predictable slide recovery. Designed as the direct successor to the championship-proven MX33, the MX34 introduces an updated casing construction and an advanced tread block architecture that delivers superior feedback when leaning into hard-packed ruts or traversing loose topsoil over hard base.
The MX34 features Dunlop's Progressive Cornering Block Technology (PCBT) on the shoulder knobs, which incorporates advanced diamond-shaped block-within-a-block tread elements. This increases surface area contact and edge bite as lean angle increases. A new carcass material with optimized ply tension improves carcass compliance, allowing the tire to absorb braking bumps and track chop without deflecting off-line. The rubber compound features an advanced molecular polymer blend with increased carbon black particle density, enhancing tear resistance and knob longevity over rock-infested terrain and hard-baked dirt.
- Tire Size: 80/100-21 (Standard 21" front motocross/enduro wheel)
- Terrain Application: Soft-to-Intermediate (loam, sand, mud, rutted tracks, mixed dirt)
- Tread Technology: Progressive Cornering Block Technology (PCBT) Advanced
- Carcass Construction: CTCS (Carcass Tension Control System) optimized 2-ply nylon
- Tread Pattern: Directional rotation with diamond-block shoulder knobs
### Step-by-Step Installation & Safety Protocols Installation requires tire spoons, rim lubricant (soapy water or commercial bead paste), a valve core tool, and proper tire rim protectors. Deflate the old tube, break the bead on both sides, loosen the rim lock nut, and spoon the old tire off the rim. Inspect the rim band, spokes, and rim lock for burrs. Lightly dust the inner casing of the Dunlop MX34 with talcum powder, insert the inner tube (or mousse bib), align the tire rotation arrow with forward wheel rotation, and guide the valve stem through the rim hole. Spoon the bottom bead over the rim, followed by the top bead, working progressively away from the rim lock. Inflate to 30 PSI to fully seat the bead onto the rim safety ridges, then adjust to operating pressure (typically 12.5 to 14.0 PSI for motocross). Tighten the rim lock nut to 12-15 Nm.
### Maintenance & Pressure Guidelines Maintenance involves checking cold tire pressure before every riding session and inspecting tread knobs for tearing or rounded leading edges. Keep tires away from extreme heat sources and avoid direct solvent exposure during bike washing.
Frequently Asked Questions
Q: What terrain is the Dunlop Geomax MX34 optimized for?
A: The MX34 is engineered for soft-to-intermediate conditions, excelling in soft dirt, loam, sand, muddy ruts, and mixed terrain where maximum traction and predictable cornering bite are essential.
Q: What is the recommended tire pressure for the MX34 front tire?
A: For standard motocross track use with heavy-duty tubes, recommended cold pressure ranges from 12.5 to 14.0 PSI depending on track hardness and rider weight. For rocky enduro trails, 11.5 to 13.0 PSI is common.
Q: Is the Dunlop MX34 directional?
A: Yes. The tread pattern features directional block angling; always ensure the rotation arrow on the tire sidewall matches the forward rotation direction of the front wheel.
Q: Can I run the MX34 front tire with a Tubliss system?
A: Yes, the reinforced bead profile of the Geomax MX34 forms an excellent seal with high-pressure Tubliss 21-inch systems.