Continental Argotal Tire - 29 x 2.40 Tubeless Folding BLK Soft Enduro Casing E25Continental Argotal Tire 29 x 2. 40 Tubeless Folding Black Soft Enduro Casing E25. Argotal is the ideal tire for loose terrain with cornering stability and increased side grip. The open tread pattern allows for self cleaning so you can push your riding limits through dust and loam. Supported in line shoulder studs with supportive structure for high stability even when cornering aggressively to provide high mechanical grip especially in loose soils