Duro Tire is jumping into the fat bike playground with a 120tpi folding tire. Looking very similar to a cross between the Surly Larry and Surly Endomorph, the 26×4.0 inch tire took the safe route for a first tire, and built off designs that are already known to work.
Also present, but without explanation is a 3D print of another tread pattern that looks to be more dirt oriented with bigger lugs that have wider spacing between them. Click more to see the technical specs on Big D… Checking all the requisite boxes, the Big D has a folding bead, 120tpi casing, and 60A rubber, pretty much following the proven Surly recipe. However their claimed weight of 1280g is pretty low, so it will be interesting to see if that comes out in production. Finally, the claimed ETRTO, or the listed tire size must be a typo. A 120 width in ETRTO is almost 5″, but the tire size listed is 26×4.0″. Once we get a set, we will report on the actual measured size.