My longest trip was 4500.From the UK to Brno for the GP,Hungary,Romania,Bulgaria,Greece,Italy,Switz,France,then home.I did this on my V11 Sport.Did not take any spares.And the V11 never missed a beat.Although I did get a new set of tires at Agostini's! It was my first time doing that sort of distance on a bike.It took 21 days and 14 of those days it rained.