The problem with pink . . . is that all the pinks are different! I have a pink King headset and have done the pink tires and bar tape. Was going to get the pink version of my saddle (Aspide Glamour). But have decided, instead, to go with white and have the headset as just a bit of bling. [I have discovered that Selle San Marco does sell bar tape that matches its saddles exactly.]

If you can get a saddle and bar tape that match, exactly or nearly so, I'd say go for it. Whoever suggested mixing a white saddle with pink handlebar tape is fashion-challenged. The 5.1 is a classy looking bike. Nice paint job, so I don't know about a full-on pink saddle and bar tape. The Vitesse white w/pink *might* look okay with pink bar tape, but I think white would look better. Just a touch 'o pink on the saddle.