Thanks for the road info between Calgary and Nordegg. I'm figuring my TrailWings will be at end of life by the time we get to Calgary, they've got 3300 miles on them so far and I've only used them the past 2 1/2 months. It'll be around 2500 miles up to Calgary from here (we're coming into Ontario from Minnesota and over on hwy 1 or up to 16). I run into mud here on our forest service roads and know it's just a matter of time til I'm going down. They're really slippery. I'm planning on Tourance for my next road tire. Do you think I should go for a Tourance and just stand up for the Trunk Road or go for a TKC-80 or Karoo while up there and switch to a Tourance for the ride back home. I'll have to buy tires up there, either way.