DESC: Burley's Jogging stroller conversion kit is for use with the 2004 and 2005 D'lite and Solo trailers, as well as the 2005 Encore. Jogging on and off road is now as simple as adding a 16" wheel to the front of your Burley Bike Trailer . The jogger kit comes complete with a spoked 16" wheel and a hand brake to make the quick conversion. Note - the kit works in conjunction with handle bar that is included with every 2005 Encore and every 2004/2005 D'lite and Solo.