I used to sail. Stepfather had a 41' yawl. He sailed all over the Pacific and I made the leg from Hawaii to California. TBH it was kind of rough for me as a teenager - boring, stir-crazy, **** food, and cold salt water bathing. And Jaws had just come out and we watched it right before we set out - that was probably a mistake.
But there are few experiences like seeing land after 20 days at sea, having avoided the giant sharks.
If I were to bring a bike on an ocean cruise it would be a cheap aluminum junker. Steel rusts so fast out there. You'd have to keep everything slathered in grease.