Advice from the cyclists on the boat

Invest in good clothes and equipment: merino/tencel clothes (that fit and that you’ll actually wear) (quick-drying? Definitely. Don’t take cotton, but also, synthetics smell really quickly), down sleeping bag, good tent, mat with a good R rating – second hand is great
3 changes of clothes, max: 1 each to cycle, chill, sleep in, (“you’re going to stink on the bike anyway, I try to not stink in bed” 😊) plus raincoat, raintrousers, jumper (“a fleece jacket might have been good too”)
Putting your hood under your helmet works better than a helmet cover
Take overshoes and wear them if necessary even though they look ridiculous. Wet shoes take a long time to dry
Eat. Lots, and at least every 20 km
Take a chain link/connector (broken chains suck)
Don’t take a book.
You probably don’t need a hammock (we really wanted to bring ours but only used it once)
Don’t go so fast. You’ll get farther going slower (because you won’t get so exhausted)
Have fun. Enjoy yourself.

They had 2 front and 2 rear bags, plus a tent across the rear bags. And frame bags. And bottle racks.