Surly’s ultra-versatile fat bike tire.
Edna is designed to perform admirably on a wide variety of terrains. Wanna go ride some super loose dirt or snow trails? Do it. Feel like riding over the pulverized bones of your enemies or, as some people call it, sand? Go for it. Hardpack? Lean back and let ‘er rip. Edna’s unique tread pattern has enough lug to provide bite on the loose stuff and a tight center tread that doesn’t drag on the hard stuff. Add in a 4.3” footprint and you have enough traction and float to ride wherever and whenever you damn well please.
ETRTO: 559mm (fits rims 80–100mm wide)
Casing: 60 tpi