i also had a look at the aprilia pegaso trail yesterday, and realised in specs it's more like the 650GS than the Dakar. i'm not sure what that has to do with anything

just an observation
back to the topic: i currently mount pavements with a 10", hahaha
i see your point though, hmmm, what about a dakar with a 19" front wheel (i have actually seen a pic of a dakar with 17"s - supermoto style)