I'm just back yesterday from 9 day 1500 mile tour of the wild Atlantic way. I was two up and only used a top box and a tank bag. Pack light, buy primark socks, underwear and tee's and dispose of them along the way. Use breathable under suits on bike, they dry over night OK. Bike ran OK, chain was a pain with the wet weather and bike was a bit of a pig in the traffic and a handful up the wee mountain roads and passes but no stalls and tip overs this time, just!