I've rode over 100+ miles with my wife on board,on a weekend getaway,she liked it(the FZ6) way better than on my 04 sportster, she thought the riding position was more comfortable, the passenger pillion was softer, ride quality was better. she used to complain on the sporty saying her feet were numb and her back hurt. I used to have to stop every 20 or so miles,On the FZ6 we rode 80miles straight stopping only for a smoke break at the lookout on montazuma valley rd. the bike was great, there was a noticeable difference on how easy it was to pull wheelies though
short shift out of 1st gear asap or you can find out if your wife trusts you!!!
. aside from that acceleration and braking distances increase, my wife wanted me to "get after it" on one long straight we managed to hit 135mph before I shut down but it would have gone farther. all in all its a great two up bike, it is more then capable of turning a saturday ride into a weekend getaway.