Baby Jogger is discontinuing its Summit 360 stroller and releasing an new version of that, called the Baby Jogger Summit XC. The Baby Jogger Summit XC stroller has 16″ rear wheels and a front 12″ wheel. Front wheel can swivel and lock for jogging purposes. Changes to the 2010 Baby Jogger Summit XC Include: 1. Larger sun canopy for better sun procection. 2. A handbrake for slowing down. (Not the brake to stop the stroller, that is still a foot brake!). 3. Redesigned 16″ rear wheels. The color selection of Royal Blue, Sand, or Red are the same as the original summit 260. The 2010 model is availabe as a Summit XC single or Summit XC double or Summit XC triple.