Here I go again.....
There are a ton of places within 20-30 minutes of Burlington. All you need is this link
http://www.fotwheel.org/index.php
I recommend Hinesburg Town Forest, excellent single track. Climb up Dragons tail from the back door and take Fire Breather - its like that first drop on a roller coaster.
Saxxon is closer to b-ton but sometimes crowded.
They used to have downhill at Bolton Valley ski area
And the
http://www.vmba.org/ is our JORBA
This is why we need the link for places outside of jersey.