Aggressive tread design offer excellent penetration and improved mud clearing while maintaining a consistent feel from straights to the corners Aggressive tread design offer excellent penetration and improved mud clearing while maintaining a consistent feel from straights to the corners TERRA - 3C Maxx Terra is softer and offers more traction than 3C Maxx Speed, yet provides better treadwear and less rolling resistance than Maxx Grip TR - Tubeless Ready - sealant required DD - Double Down construction features two full 120 TPI casing layers reinforced with a butyl insert