The Surly ExtraTerrestrial 29 x 2.50" tire is built to handle the demands of loaded touring and bikepacking over a variety of surfaces. Its high-volume design offers comfort and control on long rides, while the tread pattern balances efficiency on pavement with grip on gravel and dirt. The tubeless-ready folding casing allows for lower pressures and flat protection, making it ideal for extended adventures far from pavement. It’s tough, reliable, and made for the road less traveled.