The Surly ExtraTerrestrial is an ultra-durable touring tire designed to provide low rolling resistance and durability on various multi-road surfaces, and the low-profile, directional tread pattern maintains traction when it's needed.
- Molded tread pattern for anti-cut propagation
- Kevlar cap under the tread to protect against flats
- Nylon breaker in the sidewalls for cut protection
- Recommended rim width: 23 - 30mm