For those hardcore mountain bikers near looking for a challenge

Tomorrow night (October 15) is the annual BATMAN Ride

Ride the POTO at night, BACKWARDS!

http://www.mmba.org/forum/viewtopic.php?f=7&t=100331

For those who are wondering, the Potowatami trail at Pinckney State Park (Near Ann Arbor) in Michigan is perhaps the most challenging X-Country MTB trail in SE Michigan. 18 miles long it takes even experienced and seasoned riders 2 hours to complete (there are shorter loops available)