Shortly after taking shipment of my 26" Nimbus (internal disc brake) Oracle MUni, I switched the 26x3" Duro that comes standard with a 26x2.5" Maxxis HighRoller based on this advice and I could not be happier with it! The 26x3" Duro rolled over rocks and roots like a tank at really low (12-15psi) pressure and the 26x2.5" Maxxis HighRoller does require a little more (18-20psi) pressure but the weight savings (also switched to a lighter tube) is substantial.