Originally Posted by
MaxKatt
I was concerned about this as well, so sealed up my bike’s frame and filled it with helium.
To be as pedantic as before in this thread: You didn't fill it up with helium, you displaced the air with helium.
As a bonus, the lighter bike is faster and climbs more easily.
This only works with carbon though. Steel may be real, but you can’t float it with any of the noble gasses.
You should also be realistic about how much time, effort, and money you put into this given your time on the water. I only did it cause I’m on a ferry a couple times a year at least.
I, personally had a long think about it, and just bought* two packrafts. They weigh a bit (but not much), but I don't have to float around waiting for rescue. Now, where did I put my Torqeedo motor.
*No, obviously not for real.