Description
Experience unmatched durability and reliable performance with the Surly ExtraTerrestrial Tire 29 x 2.5 Tubeless Folding in Black/Slate. Designed specifically for long-distance touring, gravel adventures, and versatile hybrid riding, this high-performance tire offers exceptional traction across varied multi-road surfaces while minimizing rolling resistance for efficient rides.
Materials & Construction:
Constructed with a robust 60 TPI nylon casing, the ExtraTerrestrial tire features a reinforced sidewall with built-in cut protection through a nylon breaker, ensuring resilience against rough terrains, debris, and trail hazards. The tire includes a Kevlar cap under the tread for superior flat protection and puncture resistance, making it ideal for demanding touring and off-road adventures.
Performance & Engineering:
Engineered for durability and low rolling resistance, this tubeless-ready clincher tire is optimized for long rides on mixed surfaces. Its low-profile, directional tread pattern provides excellent traction when you need it most, whether navigating loose gravel, rocky paths, or paved roads. The tire’s 29-inch diameter and 64mm ISO width make it compatible with most touring and hybrid rims, with recommended rim widths between 23 to 30mm for optimal performance.
Components & Technology:
Featuring a folding bead for easy installation and a tubeless-ready design, the ExtraTerrestrial improves ride quality and reduces flats by allowing lower pressures for enhanced grip and comfort. The 60 TPI construction ensures a balance of flexibility and durability, making it suitable for extended touring or daily commuting.
Style & Use Case:
With its sleek Black/Slate color scheme, the Surly ExtraTerrestrial is not only functional but also stylish, perfect for riders seeking a rugged look without sacrificing performance. Whether you’re embarking on multi-day bike tours, gravel adventures, or hybrid commuting across diverse terrains, this tire delivers reliable grip, protection, and longevity.
Innovative & Differentiating Features:
– Molded tread pattern for anti-cut propagation, enhancing puncture resistance and A to Z durability
– Kevlar cap under the tread for added flat protection and peace of mind during extended rides
– Nylon sidewall breaker provides enhanced cut resistance against trail debris and sharp objects
– Designed to optimize compatibility with wider rims (23-30mm), promoting better fit and ride stability
Key Specifications:
– Size: 29 x 2.5 inches (Labeled Size 29 x 2.50)
– Tire Type: Tubeless-Ready Clincher with Folding Bead
– TPI: 60 for excellent suppleness and durability
– Flat Protection: Tread and Sidewall with Kevlar casing
– Max PSI: 60 for optimal inflation and performance
– Weight: 1070 grams for a durable yet lightweight touring tire
Upgrade your bike with the Surly ExtraTerrestrial Tire 29 x 2.5 Tubeless Folding – the ideal choice for adventurous cyclists seeking dependable, high-performance gear that withstands the rigors of multi-road, gravel, and hybrid riding. Optimize your ride today for enhanced traction, flat protection, and exceptional durability.
- Ultra-durable touring tire engineered with a rugged 60 TPI nylon casing for reliable performance on varied multi-road surfaces.
- Features a molded anti-cut tread pattern and reinforced sidewalls with nylon protection to prevent flats and enhance durability during long-distance rides.
- Folding bead design allows for easy transportation and compatibility with a wide range of 29-inch rims, with recommended widths of 23-30mm for optimal performance.
- Tubeless-ready clincher construction offers low rolling resistance, improved traction, and simplifies setup for a seamless riding experience.
- Designed in sleek black and slate with a low-profile, directional tread pattern that maintains excellent grip and traction when you need it most, perfect for touring, hybrid, and adventure cyclists.
| Flat Protection | Tread and Sidewall |
| TPI | 60 |
| Color | Black/Slate |
| Weight | 1070 |
| Defined Color | Black |
| ISO Width (mm) | 64 |
| ISO Diameter | 622 / Road / 29″ |
| Tire Intended Use | Touring-Hybrid |
| Tire Diameter | 29″ |
| Tire Bead | Folding |
| Labeled Size | 29 x 2.50 |
| Tire Type | Tubeless Ready Clincher |
| PSI | 60 |






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