I just rode these tires (front and rear) on the Ouachita Challenge in Arkansas. Its a mix of jagged rock gardens, flowy single track, technical ascends, and long country roads. The Maxxis Ikons (EXO) held up to every bit of it. This tire rolls amazingly fast, and hooks up really well. I've never felt more secure bombing downhills and taking turns as fast as I do with these tires. They are a racing tire so I think the durability might be a weakness and the tread might wear out fast, but we'll see. I would recommend these for sure.