We're so bummed!  After she was in the shop for a tuneup and wheel fix, we rode her all week last week without a problem.  Took her out tonight for a quick spin and when we downshifted to go up the hill (by Hodenpyl rock), the chain fell off and smushed the cable stay.  We did this repair 2 years ago!  Had to have some welding and repainting done.  Not again!  

Time to contact Co Motion!