The Surly Dirt Wizards are highly focused – one might even say spellbound – on providing traction and control on the kinds of surfaces where nary traction nor control are to be found.

Features

• Its tread is composed of a dual row of aggressive, trail-gobbling, beveled knobs in the center and well-spaced, siped knobs to dig into loose corners.
• Designed to work on 50mm rims
• Dirt Wizards are tall and wide, providing next-level traction and cushioning.
• The casings are flexible and responsive, yet durable and supportive.
• Minimum rim size for these naughty little wizards is a 35mm outer rim width. 

Specifications

• Labeled Size: 29 x 2.6
• Color: Black
• PSI: 40
• ISO Width (mm): 66
• ISO Diameter: 622 / Road / 29"
• Flat Protection: Tread and Sidewall
• Tire Intended Use: Mountain
• Defined Color: Black
• Tire Type: Tubeless Ready Clincher
• Weight: 1250
• TPI: 60
• Tire Bead: Folding
• Tire Diameter: 29"