SCHWALBE 2.25 Nobby Nic SS TL Folding Tire, 27.5x2.25 PaceStar triple compound is designed for extremely fast XC; Features easy rolling base layer, medium compound center, and medium-soft shoulders LiteSkin construction features light, thin sidewalls for reduced weight and reduced rolling resistance Tubeless Ready design requires tire sealant to complete the process Folding bead