I have 2.6 Nobby Nic in front and Rocket Ron in the back on Banshee Spitfire. One of the best combo’s for Midwest trail riding. Feels like normal tires but way more grip. Prefer them instead of the 2.4 Ardent/2.2 Ikon I have on my 29er hardtail. Just way more grip. Not sure how they would do in more rocky conditions since they do seem light/thin to keep weight down. 2.6 seems like the sweet spot if it fits your terrain and riding style.