yea, around 20's usually good in town on the beater, but 15 seems quick with a loaded trailer. Even with potholes mapped out on my normal routes.
30+ on the 29er in the boons, she'll do 36 but just because it'll go that fast doesn't mean I want to rattle the chompers the whole time eh. But then 25's a nice gas sipping cruise in 7th gear and low rpm.
Usually depends on how much of a hurry you're in.