we went to Spain in 2005, done around 2200 miles in 10 days on my GSXR600 was no problem, worst thing was the luggage giving high speed wobbles We went to Portsmouth-Santander on the ferry then went to Valencia and Salou. got a photo in the other link about bikes in the general discussion section

wasnt too much of a problem with cramps/aches... mor probs with sweating ya tits off