Rob, sorry I missed your question. Most times in the US they run straps just like on a bike trailer. What we are finding here is they put a cushion on your seat and run a strap over it. I don't really like that, because of potential damage to the seat and the chance that it isn't secure enough. But what are you gonna do?Thanks for taking us along, have a question, if the ferry was that rough what keeps the bike from tipping? Are they strapped down.