May 4th and 5th for two days of boosting the bike park and trails.

-City Trail Day
-Take A Kid Mountain Biking
-Grand opening of metro trail connection to bike park.
-Two days of work, ride and fun. (extend single track, pump track, dirt jumps and build features)

The city's calendar and list of events:

http://www.ci.middleton.wi.us/DocumentCenter/View/940

The club house will have a local beer special for participants.

Home Page - madcitydirt.com
Middleton Bike Park