690 when I went to John'O Groats and a bit back. Mostly A & B roads so a lot of twisty riding, pretty tiring. Think It was about 12 hours with stops for food drink and the bikes drink. 210 mile on a tank... wouldnt have wanted to take it much further on that tank!!!
I found it ok to be honest, 3 days of riding and not really any pains or aches at all