The Surly ExtraTerrestrial 26 x 1.8" is a rugged yet efficient tire built for long-distance touring and city-to-trail versatility. With a 60 TPI folding casing and tubeless-ready construction, it delivers a smooth ride and solid puncture protection for mixed-surface travel. Its tread pattern is tuned for speed on pavement and grip on gravel or dirt paths, making it a dependable choice for commuting, bikepacking, or global exploration. Lightweight, tough, and built to go the distance.