Yep. If the reflectors are old, they may be brittle enough to break off with your bare hands. To do so without bending the spoke it's attached to, grab the reflector with both hands and flex it hard.

crozewski, nice bike by the way I have just got a Fuji Allegro, which is a step up from the Gran Tourer, and I really love the Allegro (it's now converted to fixed gear).