I just purchased an 05' Trailboos 330 and was curious as to the miles per tank I should be getting. I successfully installed the Polaris speedometer and can accuratly guage my mileage now. I bet the crap out of it and spend most of the time screwing around at or around full throttle for expended periods and the last time I filled the tank I got 52 miles out of it. If I were to drive like a normal person shouldnt I get more around 100??? Tank capacity is a tad over 3 gallons, 3.2 to be exact.

 

I would guess from 75 to 85 would be about right for average trail riding.