The Donnelly EMP 700×38 tire is a high-volume, tubeless-ready option built for aggressive gravel riding. Its tightly spaced center knobs and deep side lugs offer excellent traction across a range of off-road conditions. While this tire is built to perform, its longevity and performance heavily depend on consistent cleaning and proper storage practices. This guide offers a thorough, professional approach to cleaning and storing EMP 700×38 tires to ensure optimal performance and durability.

Tools Required

• Soft-bristle brush
• Clean microfiber cloths
• Mild bike-specific cleaner or diluted dish soap
• Water hose with low-pressure spray
• Tire levers
• Plastic tub or basin (for soaking, if needed)
• Floor pump or air compressor (if reinflation is necessary)
• Tire sealant (for tubeless setups)

Understanding EMP 700×38 Tire Construction

Before cleaning or storing, it’s essential to understand the tire’s construction. The EMP 700×38 features a durable casing with a dual compound rubber tread. The tubeless-ready design includes a bead that must be carefully preserved to maintain a secure seal on the rim. Aggressive tread patterning demands special attention during cleaning to dislodge embedded debris and avoid long-term damage.

Routine Cleaning After Every Ride

Regular cleaning after rides—especially in muddy, wet, or dusty conditions—is crucial to tire health. Dirt and grime can work their way into the tread and degrade the rubber over time.

Step-by-step cleaning process:

Begin by lightly rinsing the tire with a hose to remove loose debris. Avoid high-pressure settings, which can force water and grit[paid link] into the casing or sidewalls. Apply a bike-specific cleaner or a diluted solution of dish soap and water directly onto the tire.

Using a soft-bristle brush, gently scrub the tread area, focusing on the center knobs and side lugs. These areas tend to trap grit that could compromise traction and wear the rubber prematurely. Avoid using wire brushes or abrasive tools, as these can score the surface.

Once cleaned, rinse the tire thoroughly to remove any residual soap. Dry the tire with a microfiber cloth, paying close attention to the sidewalls and bead area. Do not leave the tire to air-dry in direct sunlight, which can cause UV damage over time.

Deep Cleaning for Embedded Debris and Sealant Build-up

Occasionally, deeper cleaning is necessary, especially after extended gravel rides or races. If you are running tubeless, check for and remove old sealant buildup that may be lodged near the bead or inside the casing.

For a more intensive clean, deflate the tire and remove it from the rim using tire levers. This allows full access to the inner surface. Soak the tire in a mild soapy solution to loosen stubborn dirt. Use a cloth to wipe down the inside, focusing on dried sealant residue that can interfere with future tubeless setups.

Dry the tire completely with a clean towel. If you intend to remount immediately, inspect the bead area for damage or irregularities before reinstalling.

Storage Guidelines for Off-season or Long-term Periods

Proper storage of the Donnelly EMP 700×38 tire during off-season periods helps prevent premature aging and maintains structural integrity.

Cleaning before storage:

Always clean the tires thoroughly before storing. Dirt and chemicals from trails can degrade the rubber and lead to sidewall cracking. Ensure the tire is fully dry before proceeding.

Ideal storage conditions:

Store tires in a cool, dry place, away from direct sunlight or heat sources. UV rays can cause cracking and hardening of the rubber. Avoid areas with ozone sources such as electric motors or furnaces, which can accelerate rubber degradation.

If storing mounted tires, ensure they are partially inflated and not under load—this prevents flat spots from developing. Hang the bike by the frame or use a storage stand. If tires are removed from wheels, lay them flat in a ventilated, shaded area or hang them vertically using a hook through the bead.

Preventing Common Cleaning and Storage Mistakes

A few frequent mistakes can significantly reduce the lifespan of your EMP 700×38 tires. Avoid using degreasers or automotive cleaners, as these can strip oils from the rubber compound. Do not store tires in plastic bags or sealed containers, which can trap moisture and promote mold or mildew growth.

When cleaning, never use high-pressure washers directly on the tire bead. This can damage the seal between tire and rim, compromising tubeless setups. Additionally, refrain from using metal tools to remove debris; stick with plastic picks or brushes.

Maximizing Performance through Seasonal Maintenance

At the end of each riding season, it is advisable to inspect and clean your EMP 700×38 tires thoroughly. This includes checking tread wear, sidewall condition, and the overall integrity of the casing. If any deep cuts, casing bulges, or dry rot are visible, replacement should be considered.

Replenish or replace tubeless sealant if storing the tire mounted. For unmounted tires, ensure they are not bent or twisted, which can deform the bead. When reusing tires in the spring, reinflate gradually and check for bead leaks or seating issues before heading out.

Customizing Tire Pressure Based on Storage Conditions

Before storage, consider setting tire pressure slightly below normal riding levels—around 20–30 PSI. This helps relieve stress on the casing and bead while preventing complete deflation, which could encourage sidewall creasing or cracking in colder environments.

During extremely cold or hot seasons, check tire pressure monthly. Tires exposed to fluctuating temperatures in garages or sheds can expand and contract, affecting pressure and casing tension.

Comparison with Similar Tires for Storage Sensitivity

Compared to other gravel tires in the 700x38mm class, the EMP exhibits slightly more sensitivity to long-term environmental conditions due to its more flexible casing and aggressive tread design. Tires with denser casings or less aggressive treads may endure storage neglect better, but the trade-off is reduced off-road performance. Proper care ensures the EMP maintains its edge over more robust but less dynamic competitors.

Compatibility Considerations When Removing for Storage

If removing the EMP 700×38 tires from tubeless setups, it is important to ensure the rim tape remains intact and the bead seat area on the rim is clean. Any damage to the rim tape or contamination from old sealant may compromise resealing when reinstalling the tire. It is advisable to mark the tire’s previous position on the rim with a small reference dot, making remounting simpler and maintaining balance.

Conclusion

The Donnelly EMP 700×38 is a top-performing gravel tire that rewards riders who invest in regular cleaning and mindful storage practices. By following these guidelines, cyclists can ensure their tires deliver consistent performance across multiple seasons. Keeping the bead clean, sidewalls protected, and storage conditions optimal will prolong the life of this premium gravel tire and help avoid costly replacements or ride disruptions.