I'm running 2.3 and find it nice, snow and sand wider is better and for both I'd prefer 3.0 or even wider. For trail I think 2.5 is really getting to be too much and the weights seem to really go up a lot as tires get bigger, not being the best climber I like lighter tires. Haven't ridden a 29" 2.0 or 1.95 so I don't know how much of the better ride is running the 2.3 and how much was just the switch to a 29er.