New rubber! I've been riding 3.0" purgatorys on the ebike and whilst theyre generally pretty good I wanted to try something more square in profile. Sooo, I bought some 2.6" purgatorys. I'm hoping the shoulders will cut into corners better and that they'll cut into mud a bit better too. I'm going to have to play with tyre pressures a bit I think. They look tiny in the bike compared to the 3s!