Ordered a complete spare wheel, gears and all. Original wheel for trainer, new one for riding. Original wheel is Jalco DRX2000. New wheel is ZAC19 by Weinmann. Did the bike shop forget to mention installing rim tape? Barely used it and already have a flat. Have never seen a rim setup where the spoke nipples are recessed like in the picture. The flat is right over one of the recesses. I'm guessing rim tape is needed to keep the tube from expanding into hole?