Up to 60/70 it wont make much difference what you use, its not like they are going to wheel spin and loose grip..
Proper road tyre tread will give less friction so may gain you a little on top speed, but proper road tyres make a quad as twitchy as hell, whereas knoblies give a more controlable ride !
Maxxis and Kenda both make road tyres for quads, but finding something in 11" may prove impossible.
The Duro Scorcher ATV tires feature large flame shaped tread blocks for maximum contact patch to aid cornering grip performance.
Directional groves provide excellent water evacuation.
Special rubber compound designed for high speed asphalt racing.
Tires are not D.O.T. approved.
Not to plug my own stuff, but i have a setup for sell that i can personally testify to getting your ass off the line and riding really good on pavement. I'm just trying to sell them so i can buy a new ar-15.