The Course TCS Tubeless Tire pairs a Dual DNA rubber compound with three-piece SG2 puncture protection, combining a faster-rolling center tread with grippier shoulder knobs for confident cornering. A round profile similar to a high-volume road tire keeps the ride predictable across hardpack, loose gravel, and dirt without demanding a tire swap when conditions change mid-ride. What Our Gearhead(R) Experts Are Saying:"I've felt the difference on long gravel days when the wind picks up. The Stromm-developed sidewall shaping keeps me from fighting drag, saving close to 9 watts at a steady 22mph pace without changing how the tire feels underneath me."