The existing fat tires from Surly [Endomorph & Larry] are great snow/sand tires, but their tread pattern isn’t ideal for straight up trail riding. So Surly offered up a new fat tire, called the Nate, in a knobby pattern for times when you really want to get traction.
Here is Surly’s marketing spew:
“We named this tire for our friend Nate, who is himself large and aggressive. A major departure from Endomorph and Larry’s more shoot-n-drift tread characteristics, Nate is a shred-your-face-off, run-over-anything, kung fu grip knobby tread pattern. The casing is round and supple at 120tpi. Tall, widely spaced knobs are siped for added grip and compliance, which optimizes their grip. The knob’s wide spacing means they dig deep and still shed the crap you’re riding through. The tread is wrapped around the sides of the tire some, providing good knob contour even on very wide rims, which in turn allows good off-camber traction. Available in wire or Kevlar bead.”
I’ve asked the Fairfield Bike Shop to bring me in a set for my Pugsley MTBing adventures. I’ll swap in the Larrys/Endos for beach/dune riding and give the Nates a shot for trail riding in our damp slippery winter conditions.