The Maxxis Aspen is one of our premier XC race tires. A low center tread height allows the Aspen to roll quickly but substantial – for XC – side knobs provide cornering traction. Rubber: Dual compound (best for dry, hard conditions) MaxxSpeed (2023) compound (best for XC race use) Casing: 120 TPI + EXO (best for XC race use) 2.40″ sizes are optimized for rims with an internal width of 30mm Tubeless Ready specs are denoted with a “TR” in the tables below Category: XC Race, XC Recommended use: Dry to mixed XC trail conditions Recommended installation: Front or Rear EXO EXO is a cut- and abrasion-resistant material added to the sidewalls of many Maxxis mountain bike and gravel tires. This densely woven fabric is lightweight and highly flexible, ensuring that the performance of the tire remains unaffected. Choose EXO Protection for enhanced durability for gravel, XC, and light-duty trail riding.