Harley-Davidson Motor Company (Harley-Davidson) is recalling certain model year 2015 XG500 motorcycles manufactured January 28, 2014, to March 9, 2015, and 2015 XG750 motorcycles manufactured May 12, 2014, to March 9, 2015. The affected motorcycles may have been manufactured without a rear reflector assembly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, “Lamps, Reflective Devices, and Associated Equipment.”