Thats the kind of wheel you want to look for.The 1 1/4 is the width.27" is ok and would be a good match with your old frontwheel(also 27" i assume)but be aware that it can be somewhat difficult to find high end tires in 27".700C would be better.Cosmetics aside(700c is 8 mm smaller than 27") it's no problem to run 700c in the rear and keep the 27" in the front.